WO2015174277A1 - Rotating electric machine and method for manufacturing same - Google Patents

Rotating electric machine and method for manufacturing same Download PDF

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Publication number
WO2015174277A1
WO2015174277A1 PCT/JP2015/062826 JP2015062826W WO2015174277A1 WO 2015174277 A1 WO2015174277 A1 WO 2015174277A1 JP 2015062826 W JP2015062826 W JP 2015062826W WO 2015174277 A1 WO2015174277 A1 WO 2015174277A1
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WO
WIPO (PCT)
Prior art keywords
insulating paper
diameter side
coil
side insulating
inner diameter
Prior art date
Application number
PCT/JP2015/062826
Other languages
French (fr)
Japanese (ja)
Inventor
辰郎 日野
山村　明弘
田村　修一
橋本　昭
哲也 横川
篤史 坂上
一徳 武藤
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2016519205A priority Critical patent/JP6138360B2/en
Priority to US15/307,286 priority patent/US9705374B2/en
Priority to CN201580026536.3A priority patent/CN106464054B/en
Priority to DE112015002276.7T priority patent/DE112015002276B4/en
Publication of WO2015174277A1 publication Critical patent/WO2015174277A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/10—Applying solid insulation to windings, stators or rotors
    • H02K15/105—Applying solid insulation to windings, stators or rotors to the windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto

Definitions

  • the present invention relates to a rotating electric machine such as an electric motor or a generator and a manufacturing method thereof, and more particularly to an insulating structure of a coil terminal of a coil constituting an armature winding.
  • the bending torsion tool is gripped by the tip of the open end, and the bending torsion tool is rotated to one side in the circumferential direction while being moved to the armature core side in the axial direction, and the open end of each row is inclined.
  • the main wall portion is disposed between the rows of the open end portions, and the partitioning ridge is disposed between the inclined portions of the adjacent open end portions, so that electrical insulation at the open end portions is ensured.
  • Patent Document 1 since no consideration was given to the electrical insulation at the open end of the segment conductor protruding from the armature core, there was a problem that the electrical insulation at the open end of the segment conductor was reduced.
  • Patent Document 2 after the coil end spacers are arranged between the rows of the open end portions, the open end portions are twisted to one side in the circumferential direction to form the inclined portion, so that the coil sandwiched between the open end portions
  • the partition ridge of the end spacer is twisted together with the open end. Therefore, the torsional stress is concentrated at the connecting portion between the partition ridge and the main wall portion, causing damage at the connecting portion, and there is a problem that the electrical insulation property is lowered.
  • the torsional stress acts on the main wall portion via the partition ridge, causing deformation of the main wall portion, resulting in a problem that the electrical insulating property is lowered.
  • Patent Document 2 a spacer holding mechanism for holding coil end spacers arranged between rows of open ends is required.
  • the torsional stress acts on the main wall portion via the partition protrusion, the position of the main wall portion is not stable. Therefore, the spacer holding mechanism becomes a complicated mechanism and a mechanism necessary for a device for twisting the open end, which causes a problem of increasing the cost of the device.
  • the present invention has been made to solve such a problem, and provides a rotating electrical machine that can achieve high voltage while ensuring electrical insulation of a coil terminal and can be manufactured with an inexpensive device, and a manufacturing method thereof. The purpose is to obtain.
  • a rotating electrical machine has an annular armature core in which slots are arranged in a circumferential direction, and an armature including an armature winding mounted on the armature core, A coil having 2n straight portions (where n is an integer equal to or greater than 1) to be inserted into the slot and (2n-1) coil end portions connecting 2n straight portions in a row.
  • the coil is configured to be mounted in a circumferential direction with a one-slot pitch on the core, and the coil has a first coil end of the conductor wire from an outermost diameter position in the slot to one side in the axial direction of the armature core.
  • Protruding bent at the first bent portion on the root side and inclined to one side in the circumferential direction, bent at the second bent portion on the tip side and extending outward in the axial direction, and the second coil end of the conductor wire is The axial direction of the armature core from the innermost diameter position in the slot Projecting to one side, bent at the third bent portion on the base side and inclined to one side or the other side in the circumferential direction, and bent at the fourth bent portion on the tip side to extend outward in the axial direction. ing.
  • the paper includes an annular outer-diameter-side insulating paper base disposed along the first coil terminal on the inner-diameter side of the row of the first coil terminals, and an axis of the outer-diameter-side insulating paper base.
  • An outer-diameter-side insulating paper projection that protrudes radially outward from the outer end in the direction and is inserted axially outward from the second bent portion between the adjacent first coil terminals.
  • the inner diameter side insulating paper includes an annular inner diameter side insulating paper base disposed along the second coil terminal on the outer diameter side of the row of the second coil terminals, and the inner diameter side insulating paper, respectively.
  • the fourth bent portion between the adjacent second coil terminals protruding radially inward from the axially outer end of the paper base Has an outer diameter side insulating paper projection portion inserted into Rijiku outwardly, the.
  • the first and second The gap between the tip portions of the second coil terminals can be held in the circumferential width of the outer diameter side and inner diameter side insulating paper projections.
  • outer diameter side insulating paper base is disposed on the inner diameter side of the first coil terminal row, and the outer diameter side insulating paper base portion is disposed on the outer diameter side of the second coil terminal row, The insulation distance in the radial direction of the first and second coil terminals is ensured, and the electrical insulation is improved.
  • the outer diameter side and inner diameter side insulating paper can be mounted even in the state where the first to fourth bent portions are formed on the first and second coil terminals of the coil constituting the armature winding. Therefore, since the first and second coil terminal bending and twisting devices do not require the outer diameter side and inner diameter side insulating paper holding mechanisms, the rotating electrical machine can be manufactured with an inexpensive device.
  • FIG. 1 It is a perspective view which shows the state which mounted
  • FIG. 38 is a cross-sectional view taken along arrow XXXX-XXX in FIG. 37. It is the end elevation which looked at the armature in the rotary electric machine concerning Embodiment 5 of this invention from the axial direction one end side.
  • FIG. 47 is a sectional view taken along arrow XXXVIII-XXXXVIII in FIG. 46. It is sectional drawing which shows typically the armature in the rotary electric machine which concerns on Embodiment 6 of this invention.
  • FIG. 1 is a half sectional view showing a rotating electrical machine according to Embodiment 1 of the present invention
  • FIG. 2 is a perspective view showing a main part of the rotating electrical machine according to Embodiment 1 of the present invention
  • FIG. 3 is an embodiment of the present invention.
  • 4 is a perspective view showing an armature in a rotary electric machine according to Embodiment 1
  • FIG. 4 is a perspective view showing an iron core block constituting the armature core in the rotary electric machine according to Embodiment 1 of the present invention
  • FIG. FIG. 6 is a perspective view showing a coil constituting the armature winding in the rotary electric machine according to the first embodiment
  • FIG. 6 shows the first and third coils constituting the armature winding in the rotary electric machine according to the first embodiment of the present invention.
  • FIG. 7 is an end view seen from the end side
  • FIG. 7 is a front view showing a coil constituting the armature winding in the rotary electric machine according to Embodiment 1 of the present invention
  • FIG. 8 is a rotation according to Embodiment 1 of the present invention.
  • the slot-housed state is a fragmentary cross-sectional view schematically showing.
  • the rotating electrical machine 100 is fixed to the housing 1 having the bottomed cylindrical frame 2 and the end plate 3 that closes the opening of the frame 2 and the cylindrical portion of the frame 2 in an internally fitted state.
  • An armature 10 and a rotor fixed to a rotary shaft 6 rotatably supported on a bottom portion and an end plate 3 of the frame 2 via a bearing 4 and rotatably disposed on the inner peripheral side of the armature 10. 5 is provided.
  • the rotor 5 is fixed to a rotor shaft 6 inserted through the shaft center position, and the rotor core 5 is embedded in the outer peripheral surface side of the rotor core 7 and arranged at an equal pitch in the circumferential direction to constitute a magnetic pole.
  • the rotor 5 is not limited to a permanent magnet type rotor, and a squirrel-cage rotor in which a non-insulated rotor conductor is housed in a slot of a rotor core and both sides are short-circuited by a short-circuit ring, or an insulated conductor. You may use the winding-type rotor which attached the wire to the slot of the rotor core.
  • the armature 10 includes an armature core 11, an armature winding 20 attached to the armature core 11, a slot cell 14 attached to a slot 13 of the armature core 11, It has.
  • the armature winding 20 is configured by connecting a plurality of coils 21 mounted on the armature core 11.
  • the slot cell 14 is formed in a U shape by bending a rectangular sheet made by, for example, sandwiching a polyimide film between meta-aramid fibers, inserted into the slot 13, and the armature core 11 and the armature winding. 20 is electrically isolated.
  • the number of poles of the rotor 5 is 10
  • the number of slots of the armature core 11 is 60
  • the armature winding 20 is a three-phase winding. That is, the slots 13 are formed in the armature core 11 at a rate of two per phase per phase.
  • the iron core block 12 is obtained by dividing an annular armature iron core 11 into 30 equal parts in the circumferential direction, and is manufactured by laminating and integrating a plurality of electromagnetic steel plates, and has a core back having a circular arc cross section. A portion 12a and two teeth 12b protruding radially inward from the inner peripheral wall surface of the core back portion 12a are provided. Then, the armature core 11 has the teeth 12b facing inward in the radial direction, the side surfaces in the circumferential direction of the core back portion 12a are butted together, and the 30 core blocks 12 are arranged and integrated in the circumferential direction. It is configured in an annular shape.
  • the slots 13 constituted by the iron core blocks 12 adjacent in the circumferential direction are arranged at an equiangular pitch in the circumferential direction so as to open to the inner circumferential side.
  • the teeth 12b are formed in a tapered shape in which the circumferential width gradually narrows inward in the radial direction, and the cross section perpendicular to the axial direction of the armature core 11 of the slot 13 is rectangular.
  • the coil 21 constituting the armature winding 20 has a diameter d made of, for example, a continuous copper wire or aluminum wire that is insulation-coated with enamel resin and has no connection portion.
  • a conductor wire having a circular cross section is wound into a ⁇ shape.
  • the coil 21 has three rows arranged at six-slot angular intervals, and the lengths of the first, second, third, and fourth straight portions 21a, 21b, 21c, 21d, and the first and second straight portions 21a, 21b
  • a first coil end portion 21e that connects the other ends in the vertical direction
  • a second coil end portion 21f that connects the first ends in the length direction of the second and third straight portions 21b and 21c
  • a third and a fourth A third coil end portion 21g connecting the other ends in the length direction of the straight portions 21c and 21d
  • a first coil terminal 21h extending from one end in the length direction of the first straight portion 21a
  • a second coil terminal 21j extending from one end in the length direction.
  • the 6-slot angular interval is an interval between the slot centers of the slots 13 located on both sides of the six teeth 12b that are continuous in the circumferential direction, and corresponds to one magnetic pole pitch.
  • the storage positions of the conductor wires stored in the slots 13 are defined as the first layer, the second layer, the third layer, and the fourth layer from the inner diameter side for convenience.
  • 1, 2,..., 12, 13 are slot numbers assigned to the slots 13 in the order of arrangement in the circumferential direction.
  • the first to third coil end portions 21e, 21f, and 21g are shown by straight lines for convenience.
  • the first straight portion 21a is stored in the first layer in the first slot 13, and the second and fourth straight portions 21b and 21d are stored in the second and fourth layers in the seventh slot 13.
  • Three straight portions 21 c are stored in the third layer in the thirteenth slot 13.
  • the first, second, third, and fourth straight portions 21a, 21b, 21c, and 21d are arranged in three rows with an interval of 6 slots.
  • the first coil end portion 21e extending from the first layer in the first slot 13 to the other axial end side of the armature core 11 maintains the radial position, and has a constant inclination on one side in the circumferential direction. Extending outward in the axial direction, displaced by d inward in the radial direction at the center (top), and then maintaining the radial position with a reverse inclination, extending in the circumferential direction and axially inward, Enter the second layer in the seventh slot 13.
  • the second coil end portion 21f extending from the second layer in the seventh slot 13 to one end side in the axial direction of the armature core 11 maintains the radial position, and has a constant inclination on one side in the circumferential direction. It extends outward in the direction, is displaced inward in the radial direction by a central portion (top), and then is displaced in the radial direction by maintaining the radial position with a reverse inclination, and extends inward in the circumferential direction and 13 in the axial direction.
  • the third layer in the numbered slot 13 is entered.
  • the third coil end portion 21g extending from the third layer in the thirteenth slot 13 to the other axial end side of the armature core 11 maintains the radial position, and has a constant inclination on the other side in the circumferential direction. Extending outward in the axial direction, displaced by d inward in the radial direction at the center (top), and then maintaining the radial position with a reverse inclination, extending in the other circumferential direction and inward in the axial direction, The fourth layer in the seventh slot 13 is entered.
  • the first to third coil end portions 21e, 21f, and 21g have a crank portion that is displaced in the radial direction by the width d of the conductor wire at the top. Further, the first to third coil end portions 21e, 21f, 21g and the first and second coil terminals 21h, 21j are crushed in the radial direction by a conductor wire having a circular cross section, and the radial thickness is d ′ (however, d ' ⁇ D), formed in a cross-sectional shape in which the axial thickness is d ′′ (where d ′′> d).
  • the first coil terminal 21h extending from the first layer in the first slot 13 toward one end in the axial direction of the armature core 11 is bent by the first bending portion 21n to maintain the radial position and keep constant.
  • the second bending portion 21m is bent in parallel with the axial direction of the armature core 11 and extends outward in the axial direction.
  • the second coil terminal 21j extending from the fourth layer in the seventh slot 13 to the one end side in the axial direction of the armature core 11 is bent at the third bending portion 21p to maintain the radial position and keep constant.
  • the first bending portion 21o bends in parallel with the axial direction of the armature core 11 and extends outward in the axial direction.
  • the first and second coil terminals 21h and 21j are connected to the other coil 21, the power feeding unit, the neutral point, and the like on the tip side of the second and fourth bending portions 21m and 21o. Therefore, the insulating film is peeled off at the tip end sides of the second and fourth bent portions 21m, 21o of the first and second coil terminals 21h, 21j, and the circumferential width is e (where e ⁇ d ′′). It has become.
  • FIGS. 9 is a perspective view showing an armature winding in the rotary electric machine according to Embodiment 1 of the present invention
  • FIG. 10 is an insulating paper in the coil end of the armature winding in the rotary electric machine according to Embodiment 1 of the present invention
  • FIG. 11 is a cross-sectional view schematically showing a state in which insulating paper is installed in the coil end of the armature winding in the rotary electric machine according to Embodiment 1 of the present invention
  • FIG. 13 is a diagram for explaining a method of mounting an iron core block on an armature winding in a rotary electric machine according to Embodiment 1 of the present invention, and FIG. 13 shows an iron core block in the armature winding in the rotary electric machine according to Embodiment 1 of the present invention.
  • FIG. 14 is a cross-sectional view schematically showing a state where an iron core block is attached to an armature winding in the rotary electric machine according to Embodiment 1 of the present invention, and FIG. According to Form 1
  • FIG. 16 is a side view showing the outer diameter side insulating paper in the rotating electric machine according to the first embodiment of the present invention
  • FIG. 17 is the first embodiment of the present invention.
  • FIG. 18 is an enlarged view of portion A of FIG.
  • FIG. 19 is a front view of the inner diameter side insulating paper in the rotating electric machine according to Embodiment 1 of the present invention
  • FIG. FIG. 21 is a side view showing the inner diameter side insulating paper in the rotary electric machine according to Embodiment 1 of the present invention
  • FIG. 21 is a perspective view showing the inner diameter side insulating paper in the rotary electric machine according to Embodiment 1 of the present invention
  • FIG. 23 is an enlarged view of a portion B of FIG. 19, and FIG. 23 is a perspective view for explaining a method of attaching outer diameter side and inner diameter side insulating paper to the armature winding of the armature in the rotary electric machine according to Embodiment 1 of the present invention.
  • FIG. 25 is a sectional view schematically showing the armature in the rotary electric machine according to Embodiment 1 of the present invention
  • FIG. 25 The end view which looked at the armature with which the outer diameter side in the rotary electric machine concerning Embodiment 1 and the inner diameter side insulating paper were attached was seen from the axial direction one end side
  • Drawing 27 in the rotary electric machine concerning Embodiment 1 of this invention FIG. 28 is an enlarged view of the H portion of FIG. 26, and
  • FIG. 29 is an enlarged view of the J portion of FIG. 27.
  • the armature winding 20 is shown by only the first to fourth straight portions 21a, 21b, 21c, and 21d.
  • a bent portion unformed coil (not shown) in which the first to fourth bent portions 21n, 21m, 21p, 21o are not formed is manufactured.
  • the first coil terminal 21h protrudes in the length direction of the first straight portion 21a
  • the second coil terminal 21j protrudes in the length direction of the fourth straight portion 21d.
  • 60 winding unassembled coils 1 are arranged at a 1-slot pitch in the circumferential direction to produce a winding assembly (not shown).
  • the second coil end portions 21f are arranged in a row at a slot pitch in the circumferential direction.
  • the first coil terminals 21h are arranged in one row at a one-slot pitch in the circumferential direction on the outer diameter side of the row of second coil end portions 21f.
  • the second coil terminals 21j are arranged in one row at a slot pitch in the circumferential direction on the inner diameter side of the row of the second coil end portions 21f.
  • the first coil end portions 21e are arranged in a row at a slot pitch in the circumferential direction.
  • the third coil end portions 21g are arranged on the inner diameter side in the row of the first coil end portions 21e and in a row at a slot pitch in the circumferential direction.
  • the row of the first coil end portions 21e and the row of the third coil end portions 21g are arranged in two layers in the radial direction on the other axial end side of the winding assembly.
  • the first coil terminals 21h arranged in the circumferential direction are twisted to the other circumferential side, and the first bending portion 21n and the second bending portion 21m are turned into the first coil. Formed on the terminal 21h.
  • the second coil terminal 21j arranged in the circumferential direction is twisted to one side in the circumferential direction by using a bending and twisting tool, and the third bending part 21p and the fourth bending part 21o are formed in the second coil terminal 21j.
  • the armature winding 20 shown in FIG. 9 is produced.
  • the winding assembly is configured in the same manner as the armature winding 20 except that the first to fourth bent portions 21n, 21m, 21p, and 21o are not formed.
  • the first insulating paper 151 made in an annular shape is inserted into the first coil end portion 21e from the one end side in the axial direction of the armature winding 20 through the first straight portion 21a and the second straight portion 21b.
  • the third insulating paper 153 formed in an annular shape is inserted into the third coil end portion 21g from the one end side in the axial direction of the armature winding 20 through the third straight portion 21c and the fourth straight portion 21d.
  • the second insulating paper 152 made in an annular shape is inserted into the second coil end portion 21f from the other end side in the axial direction of the armature winding 20 through the second straight portion 21b and the third straight portion 21c.
  • the first to third insulating papers 151, 152, and 153 are attached to the armature winding 20 as shown in FIGS.
  • the first to third insulating papers 151, 152, and 153 are rectangular strips cut from a sheet material such as polyimide, polyethylene terephthalate (PET), polyphenylene sulfide (PPS), and the middle of the short sides thereof. It is constructed by folding it in half and then rounding it into an annular shape.
  • the average diameters of the first to third insulating papers 151, 152, and 153 attached to the armature winding 20 are ⁇ X1, ⁇ X2, and ⁇ X3.
  • the slot cell 14 is mounted on each row of the first to fourth straight portions 21a, 21b, 21c, 21d of the armature winding 20.
  • the 30 iron core blocks 12 position the teeth 12b radially outward between the adjacent first to fourth linear portions 21a, 21b, 21c, 21d. In order to achieve this, they are arranged at substantially equiangular pitch in the circumferential direction.
  • the iron core blocks 12 arranged in the circumferential direction are moved inward in the radial direction. Thereby, each of the teeth 12b of the iron core block 12 is inserted between adjacent rows of the first to fourth linear portions 21a, 21b, 21c, 21d.
  • the outer diameter side insulating paper 154 formed in an annular shape is arranged from the one end side in the axial direction of the armature winding 20 to the first coil terminal 21h row and the second coil end portion 21f row. Insert between.
  • the inner diameter side insulating paper 155 formed in an annular shape is inserted between the row of the second coil terminal 21 j and the row of the second coil end portion 21 f from one end side in the axial direction of the armature winding 20. In this way, the outer diameter side and inner diameter side insulating papers 154 and 155 are attached to the armature winding 20 as shown in FIGS.
  • first and second coil terminals 21h and 21j are connected to each other, and the first and second coil terminals 21h and 21j are connected to the other coils 21 on the tip side of the second and fourth bent portions 21m and 21o. Connected to power feeding unit, neutral point, etc.
  • the outer-diameter-side insulating paper 154 protrudes radially outward from one end side of the base 154 a and an annular base 154 a having a certain width.
  • the inner diameter side insulating paper 155 protrudes radially inward from one end of the base portion 155a and an annular base portion 155a having a certain width.
  • the outer diameter side and inner diameter side insulating papers 154 and 155 are made of an insulating sheet material such as polyimide, polyethylene terephthalate (PET), polyphenylene sulfide (PPS).
  • the base portions 154a and 155a are produced by rounding a band-shaped insulating sheet cut out from the insulating sheet material into an annular shape. Produced.
  • the width D of the slit 154c and the width E of the slit 155c are the widths of the tip portions of the first and second coil terminals 21h and 21j from the viewpoint of improving the mounting properties of the outer diameter side and inner diameter side insulating papers 154 and 155. e or more is desirable.
  • the base 154a is the outer diameter side insulating paper base
  • the protrusion 154b is the outer diameter side insulating paper protrusion
  • the base 155a is the inner diameter side insulating paper base
  • the protrusion 155b is the inner diameter side insulating paper protrusion.
  • the outer diameter side insulating paper 154 is inserted axially outward from the second bent portion 21m between the tip portions of the adjacent first coil terminals 21h through the protruding portion 154b.
  • the base portion 154a is located between the row of the first coil terminals 21h and the row of the second coil end portions 21f.
  • the inner diameter side insulating paper 155 is inserted axially outwardly from the fourth bent portion 21o between the tip portions of the adjacent second coil terminals 21j in the inner diameter side insulating paper 155, and the base portion 155a is arranged in the row of the second coil terminals 21j. And the second coil end portion 21f.
  • the outer diameter side insulating paper 154 includes an annular base 154a disposed between the row of the first coil terminals 21h and the row of the second coil end portions 21f, respectively.
  • a protrusion 154b inserted axially outward from the second bent portion 21m between the distal end portions of the adjacent first coil terminals 21h projecting radially outward from the axially outward end of the base portion 154a; It is equipped with.
  • the inner diameter side insulating paper 155 includes an annular base portion 155a disposed between the row of the second coil terminals 21j and the row of the second coil end portions 21f, and an axially outer side of the base portion 155a.
  • a protrusion 155b that protrudes radially inward from the other end and is inserted axially outward from the fourth bending portion 21o between the tips of the adjacent second coil terminals 21j.
  • the first and third bent portions 21n and 22p and the second and second bent portions 21h and 21j of the bent portion unformed coil mounted on the armature core 11 are bent and bent using the bending and twisting tool.
  • the outer diameter side and inner diameter side insulating papers 154 and 155 can be attached to the armature winding 20 from one end side in the axial direction.
  • the bending stress due to the bending and twisting process of the first and second coil terminals 21h and 21j does not act on the outer diameter side and inner diameter side insulating papers 154 and 155. Therefore, the outer and inner diameter side insulating papers 154 and 155 are twisted, and the connecting portions between the projecting portions 154b and 155b and the base portions 154a and 155a are not damaged, or the base portions 154a and 155a are not deformed. Therefore, the rotary electric machine 100 can be applied to a use in which a high voltage is used.
  • the outer diameter side and inner diameter side insulating papers 154 and 155 are rotated in the circumferential direction. However, if it is not inserted in the axial direction, the protrusions 154b and 155b interfere with the second bent portion 21m and the fourth bent portion 21o. According to the configuration of the present invention, since the radial protrusions 154b and 155b are on the outer side in the axial direction of the second bent portion 21m and the fourth bent portion 21o, the outer diameter side and inner diameter side insulating papers 154 and 155 are arranged in the axial direction. The projections 154b and 155b can be inserted without interfering with the second bent portion 21m and the fourth bent portion 21o, and the manufacturing cost can be reduced.
  • first and third bent portions 21n and 22p and the second and fourth bent portions 21m and 21o are formed on the first and second coil terminals 21h and 21j of the bent portion unformed coils attached to the armature core 11.
  • the bending and twisting devices for the first and second coil terminals 21h and 21j do not require the holding / positioning mechanism for the outer and inner diameter insulating papers 154 and 155, and the cost of the device can be reduced.
  • the protruding portion 154b is inserted axially outward from the second bent portion 21m between the tip portions of the adjacent first coil terminals 21h. Therefore, the protrusion 154b comes into contact with the distal end side of the first coil terminal 21h, and movement of the outer diameter side insulating paper 154 in the circumferential direction is restricted. Further, the protrusion 154b comes into contact with the second bending portion 21m of the first coil terminal 21h, and movement toward the armature core 11, that is, movement in the axial direction is restricted. Thereby, the movement of the outer diameter side insulating paper 154 in the circumferential direction and the axial direction is restricted.
  • the inner diameter side insulating paper 155 is moved in the circumferential direction and the axial direction. Be regulated. Therefore, in the connection processing of the first and second coil terminals 21h and 21j, the holding mechanism for the outer diameter side and inner diameter side insulating papers 154 and 155 is not required, the cost of the equipment is reduced, and the productivity is increased. .
  • the protrusions 154b and 155b are inserted between the front ends of the first and second coil terminals 21h and 21j adjacent to each other, the gap between the front ends of the first and second coil terminals 21h and 21j
  • the circumferential width of 154b and 155b can be maintained. Therefore, as shown in FIG. 29, the inclined portion located between the first and third bent portions 21n, 21p of the first and second coil terminals 21h, 21j and the second and fourth bent portions 21m, 21o. A gap G between them is secured. Thereby, the insulation distance in the circumferential direction of the 1st and 2nd coil terminals 21h and 21j is ensured, and electrical insulation is improved.
  • the base portion 154a is disposed between the row of the first coil terminals 21h and the row of the second coil end portions 21f, and the base portion 155a is formed between the row of the second coil terminals 21j and the row of the second coil end portions 21f. Since it is arrange
  • outer diameter side and inner diameter side insulating papers 154 and 155 are made of an insulating sheet material, manufacturing becomes easy and cost reduction is achieved, and the outer diameter side and inner diameter side insulating papers 154 and 155 are made thinner. Thus, the coil end can be reduced in size.
  • first to third insulating papers 151, 152, 153 are inserted into the first to third coil end portions 21e, 21f, 21g, the first to third coil end portions 21e, 21f, 21g The electrical insulation at the coil end to be constructed is improved.
  • the outer diameter side and inner diameter side insulating papers are arranged in one layer in the radial direction, but in addition to the outer diameter side and inner diameter side insulating paper, one sheet or a plurality of sheets are provided.
  • An annular base may be provided.
  • the base portion is arranged in two layers or three or more layers in the radial direction, and electrical insulation is improved.
  • the possibility that the same portion of the other base portion is broken is very low, electrical insulation can be ensured, and reliability with respect to electrical insulation is enhanced.
  • the axially inward ends of a plurality of bases provided side by side are connected by a bridge, the number of parts is reduced and productivity is improved.
  • the bending and twisting steps of the first and second coil terminals of the bending portion unformed coils are performed.
  • the bending and twisting process of the first and second coil ends of the bending portion unformed coil may be performed, and the bending of the first and second coil ends may be performed.
  • the twisting process may be performed within the coil forming process.
  • FIG. FIG. 30 is a cross-sectional view schematically showing an armature in a rotary electric machine according to Embodiment 2 of the present invention.
  • the outer diameter side insulating paper 154A is a resin molded body in which an annular base 154a ′ and a protrusion 154b ′ are integrally formed.
  • the inner diameter side insulating paper 155A is a resin molded body in which an annular base 155a ′ and a protrusion 155b ′ are integrally formed.
  • Other configurations are the same as those in the first embodiment.
  • the thickness is increased in order to ensure the fluidity of the resin during resin molding. Therefore, the insulation distance can be reliably ensured, the electrical insulation can be improved, the risk of the outer diameter side and inner diameter side insulating papers 154A and 155A being broken can be reduced, and the reliability with respect to the electrical insulation can be increased.
  • the outer diameter side and inner diameter side insulating paper is made of a resin molded body, a complicated mold is required, and in order to ensure the fluidity of the resin at the time of resin molding, the thickness is more than necessary. It becomes the thickness of. Therefore, from the viewpoint of cost reduction and miniaturization, it is desirable to produce the outer diameter side and inner diameter side insulating paper with insulating sheets.
  • FIG. 31 is a cross-sectional view schematically showing an armature in a rotary electric machine according to Embodiment 3 of the present invention.
  • annular base portion 154a "of the outer diameter side insulating paper 154B is folded in two in the axial direction at the central portion in the axial direction to form two layers in the radial direction.
  • An annular base portion 155a "of 155B is folded in two in the axial direction at the central portion in the width direction to form two layers in the radial direction.
  • Other configurations are the same as those in the first embodiment.
  • the base portions 154a "and 155a" are folded in half at the axial central portion to form two layers in the radial direction, the rigidity of the outer diameter side and inner diameter side insulating papers 154B and 155B Is increased. Therefore, the outer diameter side and inner diameter side insulating papers 154B and 155B can be easily mounted on the armature winding 20, and the outer diameter side and inner diameter side insulating paper 154B and 155B seats when the armature winding 20 is mounted. Occurrence of bending and wrinkles is suppressed, and productivity is increased.
  • an insulation distance in the radial direction between the first coil terminal 21h and the second coil end portion 21f is ensured, and an insulation distance in the radial direction between the second coil end 21j and the second coil end portion 21f is secured. And electrical insulation is enhanced. Furthermore, even if one of the base portions 154a ′′ and 155a ′′ is broken, the electrical insulation is ensured by the other, so that the reliability with respect to the electrical insulation can be improved.
  • FIG. 32 is a cross-sectional view schematically showing an armature in a rotary electric machine according to Embodiment 4 of the present invention.
  • the first to third coil end portions 21e ′, 21f ′, 21g ′ and the first and second coil terminals 21h ′, 21j ′ are changed from the first to fourth linear portions 21a, 21b, 21c, 21d.
  • only one surface in the radial direction is deformed.
  • Other configurations are the same as those in the third embodiment.
  • the first to third coil end portions 21e ′, 21f ′, 21g ′ and the first and second coil terminals 21h ′, 21j ′ of the coil 21A are connected to the first to fourth linear portions 21a, With respect to 21b, 21c, and 21d, only one surface in the radial direction is deformed. As a result, the radial gaps in the first to third coil end portions 21e ′, 21f ′, 21g ′ into which the first to third insulating papers 151, 152, 153 are inserted are widened. Interphase insulation can be improved without enlarging the directional dimension.
  • FIG. 33 is a perspective view showing coils constituting the armature winding in the rotary electric machine according to Embodiment 5 of the present invention
  • FIG. 34 constitutes the armature winding in the rotary electric machine according to Embodiment 5 of the present invention.
  • FIG. 35 is an end view of the coil viewed from the first and second coil terminal sides
  • FIG. 35 is a front view showing the coil constituting the armature winding in the rotary electric machine according to Embodiment 5 of the present invention
  • FIG. 37 is a front view showing insulating paper in a rotating electrical machine according to Embodiment 5
  • FIG. 37 is a side view showing insulating paper in the rotating electrical machine according to Embodiment 5 of the present invention
  • FIG. 39 is a perspective view showing the insulating paper in the rotating electrical machine
  • FIG. 39 is a front view of the principal part showing the insulating paper in the rotating electrical machine according to Embodiment 5 of the present invention
  • FIG. 40 is a cross-sectional view taken along arrow XXX-XXXX in FIG. Is the implementation of this invention
  • 42 is an end view of the armature in the rotary electric machine according to the fifth embodiment when viewed from one end side in the axial direction
  • FIG. 42 is a side view showing the armature in the rotary electric machine according to the fifth embodiment of the present invention
  • FIG. FIG. 44 is a cross-sectional view schematically showing an armature in a rotary electric machine according to Embodiment 5 of the present invention.
  • the coil 221 is formed, for example, by forming a conductor wire having a circular cross section having a diameter d made of a continuous copper wire or an aluminum wire, which is insulation-coated with enamel resin and has no connection portion, into a U shape. Produced. Note that the coil 221 may be manufactured using a conductor wire having a rectangular cross section.
  • the coil 221 connects the first and second straight portions 221 a and 221 b that are separated by an angle of 6 slots and the other ends of the first and second straight portions 221 a and 221 b.
  • a first coil end portion 221e, a first coil terminal 221h protruding from one end of the first straight line portion 221a, and a second coil terminal 221j protruding from one end of the second straight line portion 221b are provided.
  • the first straight portion 221a is housed in the first layer in one slot, and the second straight portion 221b is in the second layer in the slot having a six-slot angular interval from one slot in the circumferential direction. It is made to be stored in That is, the first coil end portion 221e maintains a radial position from the other end of the first linear portion 221a, extends at a certain inclination in the circumferential direction and axially outward, and at the central portion (top portion). It is displaced radially inward by the radial width d of the conductor wire, and thereafter, with a reverse inclination, maintains the radial position and extends inward in the circumferential direction and inward in the axial direction. It is made to reach the end.
  • first coil terminal 221h extending from one end of the first straight portion 221a is bent at the first bending portion 221n, maintains the radial position, and has a constant inclination on the other side in the circumferential direction and outside in the axial direction.
  • the second bent portion 221m is bent in parallel with the axial direction and extends outward in the axial direction.
  • the second coil terminal 221j extending from one end of the second straight part 221b is bent by the third bending part 221p, maintains the radial position, and moves circumferentially to one side and axially outward with a certain inclination.
  • the fourth bent portion 221o is bent in parallel with the axial direction and extends outward in the axial direction.
  • first and second coil terminals 221h and 221j are connected to other coils 221, a power feeding unit, a neutral point, and the like on the tip side of the second and fourth bending portions 221m and 221o.
  • the first coil end portion 221e and the first and second coil terminals 221h and 221j are formed by crushing a conductor wire having a circular cross section in the radial direction to have a radial thickness d ′ (where d ′ ⁇ d), and an axial direction. It is formed in a cross-sectional shape having a thickness d ′′ (where d ′′> d).
  • the insulating film is peeled off from the tip side of the second and fourth bent portions 221m, 221o of the first and second coil terminals 221h, 221j, and the circumferential width is e (where e ⁇ d ′′). Yes.
  • the coil 221 configured in this way includes a first layer and a second layer in one slot in which the first and second linear portions 221a and 221b are spaced apart by six slots, respectively.
  • the first insulating paper 151 is arranged in one row in the circumferential direction from the one end side in the axial direction of the armature core 11 through the row of the first straight portions 221a and the rows of the second straight portions 221b.
  • the first coil end portion 221e is mounted.
  • the outer diameter side insulating paper 351 and the inner diameter side insulating paper 352 are mounted between the first coil terminal 221 h and the second coil terminal 221 j from one axial end side of the armature core 11.
  • the outer diameter side and inner diameter side insulating papers 351 and 352 are formed in an annular shape from an insulating sheet material such as polyimide, polyethylene terephthalate (PET), polyphenylene sulfide (PPS).
  • the base portions 351a and 352a are produced by rounding a band-shaped insulating sheet cut out from the insulating sheet material into an annular shape, and the protruding portions 351b and 352b protrude from the axially outer ends of the base portions 351a and 352a.
  • the protruding portion is produced by bending the base portion radially outward or radially inward. Further, the ends of the base portions 351 a and 352 a on the inner side in the axial direction are connected by a bridge portion 353.
  • the base 351a is the outer diameter side insulating paper base
  • the protrusion 351b is the outer diameter side insulating paper protrusion
  • the base 352a is the inner diameter side insulating paper base
  • the protrusion 352b is the inner diameter side insulating paper protrusion.
  • the width J of the slit 351c and the width K of the slit 352c are the widths of the front end portions of the first and second coil terminals 221h and 221j from the viewpoint of improving the mounting properties of the outer and inner diameter side insulating papers 351 and 352. e or more is desirable.
  • the outer-diameter-side insulating paper 351 configured in this way is inserted in the protruding portion 351b axially outward from the second bent portion 221m between the tip portions of the adjacent first coil terminals 221h, and the base portion 351a is the first.
  • the inner diameter side insulating paper 352 is inserted axially outwardly from the fourth bent portion 221o between the tip portions of the adjacent second coil terminals 221j in the inner diameter side insulating paper 352, and the base portion 351a is arranged in the row of the second coil terminals 221j.
  • the outer diameter side insulating paper 351 has an annular base 351a disposed along the row of the first coil terminals 221h on the inner diameter side of the row of the first coil terminals 221h.
  • a protrusion 351b inserted axially outward from the second bent portion 221m between the distal ends of the first coil terminals 221h that protrude radially outward from the axially outward end of the base 351a; It has.
  • the inner diameter side insulating paper 351 includes an annular base portion 352a disposed along the row of second coil terminals 221j on the outer diameter side of the row of second coil terminals 221j, and the shaft of the base portion 352a.
  • the base portion 351a of the outer diameter side insulating paper 351 and the base portion 352a of the inner diameter side insulating paper 352 are connected by the bridge portion 353. Therefore, since the outer diameter side and inner diameter side insulating papers 352 and 352 become one component, the number of components is reduced and productivity is increased. In addition, since the rigidity of the base portions 351a and 352a is increased, the outer diameter side and inner diameter side insulating paper 352 and 352 can be easily mounted on the armature winding 20A, and the outer diameter when the armature winding 20A is mounted. The occurrence of buckling and wrinkling of the side and inner diameter side insulating papers 352 and 352 is suppressed, and the productivity is improved.
  • the outer diameter side insulating paper and the inner diameter side insulating paper are integrated by connecting the base portion of the outer diameter side insulating paper and the base portion of the inner diameter side insulating paper with a bridge portion.
  • the outer diameter side insulating paper and the inner diameter side insulating paper may be integrated by folding in half at the center in the axial direction.
  • the armature core is formed by connecting 60 core blocks in an annular shape, and the armature core is laminated with, for example, an annular core piece punched out from an electromagnetic steel sheet. You may comprise with a single integrated iron core.
  • FIG. 45 is a front view showing insulating paper in a rotary electric machine according to Embodiment 6 of the present invention
  • FIG. 46 is a side view showing insulating paper in the rotary electric machine according to Embodiment 6 of the present invention
  • FIG. 48 is a perspective view showing insulating paper in the rotating electrical machine according to the sixth embodiment
  • FIG. 48 is a sectional view taken along the line XXXVIII-XXXVIII in FIG. 46
  • FIG. 49 is a schematic diagram of the armature in the rotating electrical machine according to the sixth embodiment of the present invention.
  • FIG. 45 is a front view showing insulating paper in a rotary electric machine according to Embodiment 6 of the present invention
  • FIG. 46 is a side view showing insulating paper in the rotary electric machine according to Embodiment 6 of the present invention
  • FIG. 48 is a perspective view showing insulating paper in the rotating electrical machine according to the sixth embodiment
  • FIG. 48 is a sectional view taken along the line
  • through holes 354 are formed so as to penetrate the base portions 351a ′ and 352a ′ of the outer diameter side and inner diameter side insulating papers 351A and 352A in the radial direction.
  • Other configurations are the same as those in the fifth embodiment.
  • the through hole 354 is formed so as to penetrate the base portions 351a ′ and 352a ′ of the outer diameter side and inner diameter side insulating papers 351A and 352A in the radial direction.
  • a cooling medium such as cooling air or cooling oil flows in the radial direction through the through hole 354, and the cooling performance of the armature is improved.
  • two through holes are formed in the outer diameter side and inner diameter side insulating paper bases.
  • the number of through holes is not limited to two, and may be one or more. .
  • the conductor wire is wound around a ⁇ -shaped coil pattern to produce a coil.
  • the conductor wire is wound around a U-shaped coil pattern.
  • the coil is not limited to a coil having a ⁇ -shaped or U-shaped coil pattern, and 2n straight portions (where n is an integer equal to or greater than 1) and 2n
  • n is an integer equal to or greater than 1
  • the first coil end of the coil is the outermost diameter in the slot. It suffices if the second end of the coil protrudes from the position in the axial direction and protrudes from the innermost diameter position in the slot toward the axial direction.
  • a conductor wire is wound around a spiral coil pattern. Even a tortoiseshell shaped coil Yes.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

The purpose of the present invention is to obtain a rotating electric machine, the voltage of which can be increased by ensuring the electrical insulation of a coil end and which can be manufactured by inexpensive equipment, and also to obtain a method for manufacturing the rotating electric machine. In a rotating electric machine according to the present invention, an outer diameter side insulating paper has: a circular ring-shaped outer diameter side insulating paper base disposed on the inner diameter side of a row of first coil ends so as to be along the first coil ends; and outer diameter side insulating paper projections each projecting outward in a radial direction from an end portion lying outward in an axial direction of the outer diameter side insulating paper base and inserted more outward in an axial direction than a second curved portion between adjacent first coil ends. An inner diameter side insulating paper has: a circular ring-shaped inner diameter side insulating paper base disposed on the outer diameter side of a row of second coil ends so as to be along the second coil ends; and an outer diameter side insulating paper projection each projecting inward in a radial direction from an end portion lying outward in an axial direction of the inner diameter side insulating paper base and inserted more outward in an axial direction than a fourth curved portion between adjacent second coil ends.

Description

回転電機およびその製造方法Rotating electric machine and manufacturing method thereof
　この発明は、例えば電動機や発電機などの回転電機およびその製造方法に関し、特に、電機子巻線を構成するコイルのコイル端末の絶縁構造に関するものである。 The present invention relates to a rotating electric machine such as an electric motor or a generator and a manufacturing method thereof, and more particularly to an insulating structure of a coil terminal of a coil constituting an armature winding.
　特許文献１に記載の従来の回転電機では、Ｕ字状の複数のセグメント導体が周方向に配列して電機子鉄心に装着され、周方向に配列したセグメント導体のターン部の内側に形成される空間に帯状の絶縁シートを挿入して、ターン部により構成されるコイルエンドにおける電気絶縁を確保していた。 In the conventional rotating electrical machine described in Patent Document 1, a plurality of U-shaped segment conductors are arranged in the circumferential direction and attached to the armature core, and are formed inside the turn portions of the segment conductors arranged in the circumferential direction. A band-shaped insulating sheet was inserted into the space to ensure electrical insulation at the coil end constituted by the turn portion.
　しかしながら、特許文献１に記載の従来の回転電機では、電機子鉄心から突出するセグメント導体の開放端部における電気絶縁について、何ら考慮されていなかった。 However, in the conventional rotating electric machine described in Patent Document 1, no consideration has been given to electrical insulation at the open end portion of the segment conductor protruding from the armature core.
　また、特許文献２に記載の従来の回転電機では、リング状の帯板である主壁部および主壁部の内周面から突出した多数の仕切突条を有するコイル端部スペーサを用いて、電機子鉄心から突出するセグメント導体の開放端部における電気絶縁を確保していた。具体的には、多数のセグメント導体が電機子鉄心に装着される。ついで、電機子鉄心から突出して周方向に１列に配列するセグメント導体の開放端部の各列に対して、主壁部を開放端部の列に沿わせ、仕切突条を周方向に隣り合う開放端部間のそれぞれに挿入して、コイル端部スペーサを配置する。ついで、曲げ捩り工具に開放端部の先端部を把持させ、曲げ捩り工具を周方向一側に回動させつつ、軸方向に電機子鉄心側に移動させ、各列の開放端部を傾斜させる。これにより、主壁部が開放端部の列間に配置され、仕切突条が隣り合う開放端部の傾斜部間に配置され、開放端部における電気絶縁が確保されていた。 Moreover, in the conventional rotating electrical machine described in Patent Document 2, using a coil end spacer having a main wall portion that is a ring-shaped strip and a large number of partition protrusions protruding from the inner peripheral surface of the main wall portion, Electrical insulation was secured at the open end of the segment conductor protruding from the armature core. Specifically, a large number of segment conductors are attached to the armature core. Next, for each row of the open ends of the segment conductors that protrude from the armature core and are arranged in a row in the circumferential direction, the main wall portion is along the row of the open ends, and the partition protrusions are adjacent in the circumferential direction. Coil end spacers are placed between each of the matching open ends. Next, the bending torsion tool is gripped by the tip of the open end, and the bending torsion tool is rotated to one side in the circumferential direction while being moved to the armature core side in the axial direction, and the open end of each row is inclined. . Thereby, the main wall portion is disposed between the rows of the open end portions, and the partitioning ridge is disposed between the inclined portions of the adjacent open end portions, so that electrical insulation at the open end portions is ensured.
特開２００５－２２４０４０号公報Japanese Patent Laid-Open No. 2005-22240 特開２００４－０３２９６４号公報JP 2004-032964 A
　特許文献１では、電機子鉄心から突出するセグメント導体の開放端部における電気絶縁について、何ら考慮されていなかったので、セグメント導体の開放端部における電気絶縁性が低下するという課題があった。 In Patent Document 1, since no consideration was given to the electrical insulation at the open end of the segment conductor protruding from the armature core, there was a problem that the electrical insulation at the open end of the segment conductor was reduced.
　特許文献２では、コイル端部スペーサを開放端部の列間に配置した後、開放端部を周方向一側に捻って傾斜部を形成しているので、開放端部間に挟まれたコイル端部スペーサの仕切突条が開放端部とともに捻られる。そこで、捻れ応力が仕切突条と主壁部との連結部に集中し、連結部での損傷発生をもたらし、電気絶縁性が低下するという課題があった。また、捻れ応力が仕切突条を介して主壁部に作用し、主壁部の変形をもたらし、電気絶縁性が低下するという課題もあった。 In Patent Document 2, after the coil end spacers are arranged between the rows of the open end portions, the open end portions are twisted to one side in the circumferential direction to form the inclined portion, so that the coil sandwiched between the open end portions The partition ridge of the end spacer is twisted together with the open end. Therefore, the torsional stress is concentrated at the connecting portion between the partition ridge and the main wall portion, causing damage at the connecting portion, and there is a problem that the electrical insulation property is lowered. In addition, the torsional stress acts on the main wall portion via the partition ridge, causing deformation of the main wall portion, resulting in a problem that the electrical insulating property is lowered.
　特許文献２では、開放端部の列間に配置したコイル端部スペーサを保持するスペーサ保持機構が必要となる。しかも、捻れ応力が仕切突条を介して主壁部に作用するので、主壁部の位置が安定しない。そこで、スペーサ保持機構が煩雑な機構となるとともに、開放端部を捩り成形する装置に必要な機構となるので、装置の高価格化をもたらすという課題もあった。 In Patent Document 2, a spacer holding mechanism for holding coil end spacers arranged between rows of open ends is required. In addition, since the torsional stress acts on the main wall portion via the partition protrusion, the position of the main wall portion is not stable. Therefore, the spacer holding mechanism becomes a complicated mechanism and a mechanism necessary for a device for twisting the open end, which causes a problem of increasing the cost of the device.
　この発明は、このような課題を解決するためになされたものであり、コイル端末の電気絶縁を確保して、高電圧化を実現できるとともに、安価な装置で製造できる回転電機およびその製造方法を得ることを目的とする。 The present invention has been made to solve such a problem, and provides a rotating electrical machine that can achieve high voltage while ensuring electrical insulation of a coil terminal and can be manufactured with an inexpensive device, and a manufacturing method thereof. The purpose is to obtain.
　この発明による回転電機は、スロットが周方向に配列された円環状の電機子鉄心、および上記電機子鉄心に装着された電機子巻線を備える電機子を有し、上記電機子巻線は、上記スロットに挿入される２ｎ本の直線部（ただし、ｎは１以上の整数）および２ｎ本の上記直線部を一続きに連結する（２ｎ－１）本のコイルエンド部を有するコイルを上記電機子鉄心に１スロットピッチで周方向に装着して構成され、上記コイルは、上記導体線の第１コイル端末が、上記スロット内の最外径位置から上記電機子鉄心の軸方向の一側に突出し、根元側の第１曲げ部で曲げられて周方向の一側に傾斜し、先端側の第２曲げ部で曲げられて軸方向の外方に延び、上記導体線の第２コイル端末が、上記スロット内の最内径位置から上記電機子鉄心の軸方向の一側に突出し、根元側の第３曲げ部で曲げられて周方向の一側又は他側に傾斜し、先端側の第４曲げ部で曲げられて軸方向外方に延びるように構成されている。上記第１コイル端末の列の内径側に装着された外径側絶縁紙と、上記第２コイル端末の列の外径側に装着された内径側絶縁紙と、を備え、上記外径側絶縁紙は、上記第１コイル端末の列の内径側に上記第１コイル端末に沿うように配置された円環状の外径側絶縁紙用基部と、それぞれ、上記外径側絶縁紙用基部の軸方向外方の端部から径方向外方に突出して、隣り合う上記第１コイル端末間の上記第２曲げ部より軸方向外方に挿入された外径側絶縁紙用突起部と、を有し、上記内径側絶縁紙は、上記第２コイル端末の列の外径側に上記第２コイル端末に沿うように配置された円環状の内径側絶縁紙用基部と、それぞれ、上記内径側絶縁紙用基部の軸方向外方の端部から径方向内方に突出して、隣り合う上記第２コイル端末間の上記第４曲げ部より軸方向外方に挿入された外径側絶縁紙用突起部と、を有する。 A rotating electrical machine according to the present invention has an annular armature core in which slots are arranged in a circumferential direction, and an armature including an armature winding mounted on the armature core, A coil having 2n straight portions (where n is an integer equal to or greater than 1) to be inserted into the slot and (2n-1) coil end portions connecting 2n straight portions in a row. The coil is configured to be mounted in a circumferential direction with a one-slot pitch on the core, and the coil has a first coil end of the conductor wire from an outermost diameter position in the slot to one side in the axial direction of the armature core. Protruding, bent at the first bent portion on the root side and inclined to one side in the circumferential direction, bent at the second bent portion on the tip side and extending outward in the axial direction, and the second coil end of the conductor wire is The axial direction of the armature core from the innermost diameter position in the slot Projecting to one side, bent at the third bent portion on the base side and inclined to one side or the other side in the circumferential direction, and bent at the fourth bent portion on the tip side to extend outward in the axial direction. ing. An outer diameter side insulating paper mounted on the inner diameter side of the row of first coil terminals, and an inner diameter side insulating paper mounted on the outer diameter side of the row of second coil terminals, the outer diameter side insulation The paper includes an annular outer-diameter-side insulating paper base disposed along the first coil terminal on the inner-diameter side of the row of the first coil terminals, and an axis of the outer-diameter-side insulating paper base. An outer-diameter-side insulating paper projection that protrudes radially outward from the outer end in the direction and is inserted axially outward from the second bent portion between the adjacent first coil terminals. The inner diameter side insulating paper includes an annular inner diameter side insulating paper base disposed along the second coil terminal on the outer diameter side of the row of the second coil terminals, and the inner diameter side insulating paper, respectively. The fourth bent portion between the adjacent second coil terminals protruding radially inward from the axially outer end of the paper base Has an outer diameter side insulating paper projection portion inserted into Rijiku outwardly, the.
　この発明によれば、外径側および内径側絶縁紙用突起部が隣り合う第１および第２コイル端末の第２および第４曲げ部の軸方向外方に挿入されているので、第１および第２コイル端末の先端部間の隙間を外径側および内径側絶縁紙用突起部の周方向幅に保持できる。これにより、第１コイル端末の第１曲げ部と第２曲げ部との間に位置する傾斜部間の隙間が確保され、第２コイル端末の第３曲げ部と第４曲げ部との間に位置する傾斜部間の隙間が確保される。したがって、第１および第２コイル端末の周方向における絶縁距離が確保され、電気絶縁性が高められる。 According to this invention, since the outer diameter side and inner diameter side insulating paper projections are inserted axially outward of the second and fourth bent portions of the adjacent first and second coil terminals, the first and second The gap between the tip portions of the second coil terminals can be held in the circumferential width of the outer diameter side and inner diameter side insulating paper projections. Thereby, the clearance gap between the inclination parts located between the 1st bending part of a 1st coil terminal and a 2nd bending part is ensured, Between the 3rd bending part of a 2nd coil terminal, and a 4th bending part. A gap between the inclined portions is ensured. Therefore, the insulation distance in the circumferential direction of the first and second coil terminals is ensured, and the electrical insulation is improved.
　また、外径側絶縁紙用基部が第１コイル端末の列の内径側に配設され、外径側絶縁紙用基部が第２コイル端末の列の外径側に配設されているので、第１および第２コイル端末の径方向における絶縁距離が確保され、電気絶縁性が高められる。 Further, since the outer diameter side insulating paper base is disposed on the inner diameter side of the first coil terminal row, and the outer diameter side insulating paper base portion is disposed on the outer diameter side of the second coil terminal row, The insulation distance in the radial direction of the first and second coil terminals is ensured, and the electrical insulation is improved.
　このように、第１および第２コイル端末の周方向および径方向の電気絶縁性が高められるので、回転電機の高電圧化を実現できる。 Thus, since the electrical insulation in the circumferential direction and the radial direction of the first and second coil terminals is enhanced, a high voltage of the rotating electrical machine can be realized.
　また、電機子巻線を構成するコイルの第１および第２コイル端末に第１から第４曲げ部が形成されている状態でも、外径側および内径側絶縁紙を装着できる。そこで、第１および第２コイル端末の曲げ捩り装置に外径側および内径側絶縁紙の保持機構が不要となるので、安価な装置で回転電機を製造することができる。 Also, the outer diameter side and inner diameter side insulating paper can be mounted even in the state where the first to fourth bent portions are formed on the first and second coil terminals of the coil constituting the armature winding. Therefore, since the first and second coil terminal bending and twisting devices do not require the outer diameter side and inner diameter side insulating paper holding mechanisms, the rotating electrical machine can be manufactured with an inexpensive device.
この発明の実施の形態１に係る回転電機を示す片側断面図である。It is a half sectional view which shows the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る回転電機の要部を示す斜視図である。It is a perspective view which shows the principal part of the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る回転電機における電機子を示す斜視図である。It is a perspective view which shows the armature in the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る回転電機における電機子鉄心を構成する鉄心ブロックを示す斜視図である。It is a perspective view which shows the core block which comprises the armature core in the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る回転電機における電機子巻線を構成するコイルを示す斜視図である。It is a perspective view which shows the coil which comprises the armature winding in the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る回転電機における電機子巻線を構成するコイルを第１および第３コイルエンド部側から見た端面図である。It is the end elevation which looked at the coil which comprises the armature winding in the rotary electric machine which concerns on Embodiment 1 of this invention from the 1st and 3rd coil end part side. この発明の実施の形態１に係る回転電機における電機子巻線を構成するコイルを示す正面図である。It is a front view which shows the coil which comprises the armature winding in the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る回転電機における電機子巻線を構成するコイルのスロット収納状態を模式的に示す要部断面図である。It is principal part sectional drawing which shows typically the slot accommodation state of the coil which comprises the armature winding in the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る回転電機における電機子巻線を示す斜視図である。It is a perspective view which shows the armature winding in the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る回転電機における電機子巻線のコイルエンド内に絶縁紙を装着した状態を示す斜視図である。It is a perspective view which shows the state which mounted | wore the insulating paper in the coil end of the armature winding in the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る回転電機における電機子巻線のコイルエンド内に絶縁紙を装着した状態を模式的に示す断面図である。It is sectional drawing which shows typically the state which mounted | wore the insulating paper in the coil end of the armature winding in the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る回転電機における電機子巻線に鉄心ブロックを装着する方法を説明する図である。It is a figure explaining the method to mount | wear an iron core block with the armature winding in the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る回転電機における電機子巻線に鉄心ブロックを装着した状態を説明する図である。It is a figure explaining the state which mounted | wore the armature winding in the rotary electric machine which concerns on Embodiment 1 of this invention with the iron core block. この発明の実施の形態１に係る回転電機における電機子巻線に鉄心ブロックを装着した状態を模式的に示す断面図である。It is sectional drawing which shows typically the state which mounted | wore the armature winding in the rotary electric machine which concerns on Embodiment 1 of this invention with the iron core block. この発明の実施の形態１に係る回転電機における外径側絶縁紙を示す正面図である。It is a front view which shows the outer diameter side insulating paper in the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る回転電機における外径側絶縁紙を示す側面図である。It is a side view which shows the outer diameter side insulating paper in the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る回転電機における外径側絶縁紙を示す斜視図である。It is a perspective view which shows the outer diameter side insulating paper in the rotary electric machine which concerns on Embodiment 1 of this invention. 図１５のＡ部拡大図である。It is the A section enlarged view of FIG. この発明の実施の形態１に係る回転電機における内径側絶縁紙を示す正面図である。It is a front view which shows the internal diameter side insulating paper in the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る回転電機における内径側絶縁紙を示す側面図である。It is a side view which shows the internal diameter side insulating paper in the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る回転電機における内径側絶縁紙を示す斜視図である。It is a perspective view which shows the inner diameter side insulating paper in the rotary electric machine which concerns on Embodiment 1 of this invention. 図１９のＢ部拡大図である。It is the B section enlarged view of FIG. この発明の実施の形態１に係る回転電機における電機子の電機子巻線に外径側および内径側絶縁紙を装着する方法を説明する斜視図である。It is a perspective view explaining the method of mounting | wearing the outer diameter side and inner diameter side insulating paper to the armature winding of the armature in the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る回転電機における外径側および内径側絶縁紙が装着された電機子を示す斜視図である。It is a perspective view which shows the armature with which the outer diameter side and inner diameter side insulating paper in the rotary electric machine which concerns on Embodiment 1 of this invention was mounted | worn. この発明の実施の形態１に係る回転電機における電機子を模式的に示す断面図である。It is sectional drawing which shows typically the armature in the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る回転電機における外径側および内径側絶縁紙が装着された電機子を軸方向一端側から見た端面図である。It is the end elevation which looked at the armature with which the outer diameter side and inner diameter side insulating paper in the rotary electric machine concerning Embodiment 1 of this invention were equipped was seen from the axial direction one end side. この発明の実施の形態１に係る回転電機における、外径側および内径側絶縁紙が装着された電機子を示す側面図である。It is a side view which shows the armature with which the outer diameter side and inner diameter side insulating paper was mounted | worn in the rotary electric machine which concerns on Embodiment 1 of this invention. 図２６のＨ部拡大図である。It is the H section enlarged view of FIG. 図２７のＪ部拡大図である。It is the J section enlarged view of FIG. この発明の実施の形態２に係る回転電機における電機子を模式的に示す断面図である。It is sectional drawing which shows typically the armature in the rotary electric machine which concerns on Embodiment 2 of this invention. この発明の実施の形態３に係る回転電機における電機子を模式的に示す断面図である。It is sectional drawing which shows typically the armature in the rotary electric machine which concerns on Embodiment 3 of this invention. この発明の実施の形態４に係る回転電機における電機子を模式的に示す断面図である。It is sectional drawing which shows typically the armature in the rotary electric machine which concerns on Embodiment 4 of this invention. この発明の実施の形態５に係る回転電機における電機子巻線を構成するコイルを示す斜視図である。It is a perspective view which shows the coil which comprises the armature winding in the rotary electric machine which concerns on Embodiment 5 of this invention. この発明の実施の形態５に係る回転電機における電機子巻線を構成するコイルを第１および第２コイル端末側から見た端面図である。It is the end elevation which looked at the coil which comprises the armature winding in the rotary electric machine which concerns on Embodiment 5 of this invention from the 1st and 2nd coil terminal side. この発明の実施の形態５に係る回転電機における電機子巻線を構成するコイルを示す正面図である。It is a front view which shows the coil which comprises the armature winding in the rotary electric machine which concerns on Embodiment 5 of this invention. この発明の実施の形態５に係る回転電機における絶縁紙を示す正面図である。It is a front view which shows the insulating paper in the rotary electric machine which concerns on Embodiment 5 of this invention. この発明の実施の形態５に係る回転電機における絶縁紙を示す側面図である。It is a side view which shows the insulating paper in the rotary electric machine which concerns on Embodiment 5 of this invention. この発明の実施の形態５に係る回転電機における絶縁紙を示す斜視図である。It is a perspective view which shows the insulating paper in the rotary electric machine which concerns on Embodiment 5 of this invention. この発明の実施の形態５に係る回転電機における絶縁紙を示す要部正面図である。It is a principal part front view which shows the insulating paper in the rotary electric machine which concerns on Embodiment 5 of this invention. 図３７のＸＸＸＸ－ＸＸＸＸ矢視断面図である。FIG. 38 is a cross-sectional view taken along arrow XXXX-XXXX in FIG. 37. この発明の実施の形態５に係る回転電機における電機子を軸方向一端側から見た端面図である。It is the end elevation which looked at the armature in the rotary electric machine concerning Embodiment 5 of this invention from the axial direction one end side. この発明の実施の形態５に係る回転電機における電機子を示す側面図である。It is a side view which shows the armature in the rotary electric machine which concerns on Embodiment 5 of this invention. この発明の実施の形態５に係る回転電機における電機子を示す斜視図である。It is a perspective view which shows the armature in the rotary electric machine which concerns on Embodiment 5 of this invention. この発明の実施の形態５に係る回転電機における電機子を模式的に示す断面図である。It is sectional drawing which shows typically the armature in the rotary electric machine which concerns on Embodiment 5 of this invention. この発明の実施の形態６に係る回転電機における絶縁紙を示す正面図である。It is a front view which shows the insulating paper in the rotary electric machine which concerns on Embodiment 6 of this invention. この発明の実施の形態６に係る回転電機における絶縁紙を示す側面図である。It is a side view which shows the insulating paper in the rotary electric machine which concerns on Embodiment 6 of this invention. この発明の実施の形態６に係る回転電機における絶縁紙を示す斜視図である。It is a perspective view which shows the insulating paper in the rotary electric machine which concerns on Embodiment 6 of this invention. 図４６のＸＸＸＸＶＩＩＩ－ＸＸＸＸＶＩＩＩ矢視断面図である。FIG. 47 is a sectional view taken along arrow XXXVIII-XXXXVIII in FIG. 46. この発明の実施の形態６に係る回転電機における電機子を模式的に示す断面図である。It is sectional drawing which shows typically the armature in the rotary electric machine which concerns on Embodiment 6 of this invention.
　以下、本発明による回転電機の好適な実施の形態につき図面を用いて説明する。 Hereinafter, preferred embodiments of a rotating electrical machine according to the present invention will be described with reference to the drawings.
　実施の形態１．
　図１はこの発明の実施の形態１に係る回転電機を示す片側断面図、図２はこの発明の実施の形態１に係る回転電機の要部を示す斜視図、図３はこの発明の実施の形態１に係る回転電機における電機子を示す斜視図、図４はこの発明の実施の形態１に係る回転電機における電機子鉄心を構成する鉄心ブロックを示す斜視図、図５はこの発明の実施の形態１に係る回転電機における電機子巻線を構成するコイルを示す斜視図、図６はこの発明の実施の形態１に係る回転電機における電機子巻線を構成するコイルを第１および第３コイルエンド部側から見た端面図、図７はこの発明の実施の形態１に係る回転電機における電機子巻線を構成するコイルを示す正面図、図８はこの発明の実施の形態１に係る回転電機における電機子巻線を構成するコイルのスロット収納状態を模式的に示す要部断面図である。 Embodiment 1 FIG.
1 is a half sectional view showing a rotating electrical machine according to Embodiment 1 of the present invention, FIG. 2 is a perspective view showing a main part of the rotating electrical machine according to Embodiment 1 of the present invention, and FIG. 3 is an embodiment of the present invention. 4 is a perspective view showing an armature in a rotary electric machine according to Embodiment 1, FIG. 4 is a perspective view showing an iron core block constituting the armature core in the rotary electric machine according to Embodiment 1 of the present invention, and FIG. FIG. 6 is a perspective view showing a coil constituting the armature winding in the rotary electric machine according to the first embodiment, and FIG. 6 shows the first and third coils constituting the armature winding in the rotary electric machine according to the first embodiment of the present invention. FIG. 7 is an end view seen from the end side, FIG. 7 is a front view showing a coil constituting the armature winding in the rotary electric machine according to Embodiment 1 of the present invention, and FIG. 8 is a rotation according to Embodiment 1 of the present invention. Carp that constitutes the armature winding in an electric machine The slot-housed state is a fragmentary cross-sectional view schematically showing.
　図１および図２において、回転電機１００は、有底円筒状のフレーム２およびフレーム２の開口を塞口する端板３を有するハウジング１と、フレーム２の円筒部に内嵌状態に固着された電機子１０と、フレーム２の底部および端板３にベアリング４を介して回転可能に支持された回転軸６に固着されて、電機子１０の内周側に回転可能に配設された回転子５と、を備えている。 1 and 2, the rotating electrical machine 100 is fixed to the housing 1 having the bottomed cylindrical frame 2 and the end plate 3 that closes the opening of the frame 2 and the cylindrical portion of the frame 2 in an internally fitted state. An armature 10 and a rotor fixed to a rotary shaft 6 rotatably supported on a bottom portion and an end plate 3 of the frame 2 via a bearing 4 and rotatably disposed on the inner peripheral side of the armature 10. 5 is provided.
　回転子５は、軸心位置に挿通された回転軸６に固着された回転子鉄心７と、回転子鉄心７の外周面側に埋設されて周方向に等ピッチで配列され、磁極を構成する永久磁石８と、を備えた永久磁石型回転子である。なお、回転子５は、永久磁石式回転子に限定されず、絶縁しない回転子導体を、回転子鉄心のスロットに収納して、両側を短絡環で短絡したかご形回転子や、絶縁した導体線を回転子鉄心のスロットに装着した巻線形回転子を用いてもよい。 The rotor 5 is fixed to a rotor shaft 6 inserted through the shaft center position, and the rotor core 5 is embedded in the outer peripheral surface side of the rotor core 7 and arranged at an equal pitch in the circumferential direction to constitute a magnetic pole. A permanent magnet type rotor including a permanent magnet 8. The rotor 5 is not limited to a permanent magnet type rotor, and a squirrel-cage rotor in which a non-insulated rotor conductor is housed in a slot of a rotor core and both sides are short-circuited by a short-circuit ring, or an insulated conductor. You may use the winding-type rotor which attached the wire to the slot of the rotor core.
　つぎに、電機子１０の構成について具体的に図３から図８を参照しつつ説明する。 Next, the configuration of the armature 10 will be specifically described with reference to FIGS.
　電機子１０は、図３に示されるように、電機子鉄心１１と、電機子鉄心１１に装着された電機子巻線２０と、電機子鉄心１１のスロット１３に装着されるスロットセル１４と、を備えている。電機子巻線２０は、電機子鉄心１１に装着された複数のコイル２１を結線して構成される。スロットセル１４は、例えばポリイミドフィルムをメタ系アラミド繊維で挟み込んで作製された長方形のシートを曲げ成形してコ字状に形成され、スロット１３内に挿入され、電機子鉄心１１と電機子巻線２０を電気的に隔離する。 As shown in FIG. 3, the armature 10 includes an armature core 11, an armature winding 20 attached to the armature core 11, a slot cell 14 attached to a slot 13 of the armature core 11, It has. The armature winding 20 is configured by connecting a plurality of coils 21 mounted on the armature core 11. The slot cell 14 is formed in a U shape by bending a rectangular sheet made by, for example, sandwiching a polyimide film between meta-aramid fibers, inserted into the slot 13, and the armature core 11 and the armature winding. 20 is electrically isolated.
　ここで、説明の便宜上、回転子５の極数を１０、電機子鉄心１１のスロット数を６０、電機子巻線２０を三相巻線とする。すなわち、スロット１３は、毎極毎相当たり２個の割合で電機子鉄心１１に形成されている。 Here, for convenience of explanation, the number of poles of the rotor 5 is 10, the number of slots of the armature core 11 is 60, and the armature winding 20 is a three-phase winding. That is, the slots 13 are formed in the armature core 11 at a rate of two per phase per phase.
　鉄心ブロック１２は、図４に示すように、円環状の電機子鉄心１１を周方向に３０等分割したもので、複数枚の電磁鋼板を積層一体化して作製され、断面円弧形のコアバック部１２ａと、コアバック部１２ａの内周壁面から径方向内方に突出された２本のティース１２ｂを備えている。そして、電機子鉄心１１は、ティース１２ｂを径方向内方に向けて、コアバック部１２ａの周方向の側面同士を突き合わせて、３０個の鉄心ブロック１２を周方向に配列、一体化して、円環状に構成されている。周方向に隣り合う鉄心ブロック１２により構成されるスロット１３が、内周側に開口するように、周方向に等角ピッチで配列されている。ティース１２ｂは周方向幅が径方向内方に向って漸次狭くなる先細り形状に形成されており、スロット１３の電機子鉄心１１の軸方向と直交する断面は長方形となっている。 As shown in FIG. 4, the iron core block 12 is obtained by dividing an annular armature iron core 11 into 30 equal parts in the circumferential direction, and is manufactured by laminating and integrating a plurality of electromagnetic steel plates, and has a core back having a circular arc cross section. A portion 12a and two teeth 12b protruding radially inward from the inner peripheral wall surface of the core back portion 12a are provided. Then, the armature core 11 has the teeth 12b facing inward in the radial direction, the side surfaces in the circumferential direction of the core back portion 12a are butted together, and the 30 core blocks 12 are arranged and integrated in the circumferential direction. It is configured in an annular shape. The slots 13 constituted by the iron core blocks 12 adjacent in the circumferential direction are arranged at an equiangular pitch in the circumferential direction so as to open to the inner circumferential side. The teeth 12b are formed in a tapered shape in which the circumferential width gradually narrows inward in the radial direction, and the cross section perpendicular to the axial direction of the armature core 11 of the slot 13 is rectangular.
　電機子巻線２０を構成するコイル２１は、図５から図７に示されるように、例えば、エナメル樹脂で絶縁被覆された、かつ接続部のない連続した銅線やアルミニウム線などからなる直径ｄの円形断面の導体線を、δ形状に巻回して作製される。なお、コイル２１は、長方形断面の導体線を用いて作製してもよい。 As shown in FIG. 5 to FIG. 7, the coil 21 constituting the armature winding 20 has a diameter d made of, for example, a continuous copper wire or aluminum wire that is insulation-coated with enamel resin and has no connection portion. A conductor wire having a circular cross section is wound into a δ shape. In addition, you may produce the coil 21 using the conductor wire of a rectangular cross section.
　コイル２１は、６スロット角度間隔離れて３列となった、第１、第２、第３および第４直線部２１ａ，２１ｂ，２１ｃ，２１ｄと、第１および第２直線部２１ａ，２１ｂの長さ方向の他端同士を連結する第１コイルエンド部２１ｅと、第２および第３直線部２１ｂ，２１ｃの長さ方向の一端同士を連結する第２コイルエンド部２１ｆと、第３および第４直線部２１ｃ，２１ｄの長さ方向の他端同士を連結する第３コイルエンド部２１ｇと、第１直線部２１ａの長さ方向の一端から延びる第１コイル端末２１ｈと、第４直線部２１ｄの長さ方向の一端から延びる第２コイル端末２１ｊと、を備える。なお、６スロット角度間隔は、周方向に連続する６つのティース１２ｂの両側に位置するスロット１３のスロット中心間の間隔であり、１磁極ピッチに相当する。 The coil 21 has three rows arranged at six-slot angular intervals, and the lengths of the first, second, third, and fourth straight portions 21a, 21b, 21c, 21d, and the first and second straight portions 21a, 21b A first coil end portion 21e that connects the other ends in the vertical direction, a second coil end portion 21f that connects the first ends in the length direction of the second and third straight portions 21b and 21c, and a third and a fourth. A third coil end portion 21g connecting the other ends in the length direction of the straight portions 21c and 21d, a first coil terminal 21h extending from one end in the length direction of the first straight portion 21a, and a fourth straight portion 21d. A second coil terminal 21j extending from one end in the length direction. The 6-slot angular interval is an interval between the slot centers of the slots 13 located on both sides of the six teeth 12b that are continuous in the circumferential direction, and corresponds to one magnetic pole pitch.
　ここで、コイル２１の構造について、図５から図８を用いて、具体的に説明する。なお、図８において、スロット１３内に収納される導体線の収納位置を、便宜的に、内径側から第１層、第２層、第３層、第４層とした。また、図８中、１,２・・・１２，１３はスロット１３に周方向の並び順にふったスロット番号である。また、図８では、便宜上、第１から第３コイルエンド部２１ｅ，２１ｆ，２１ｇを直線で示している。 Here, the structure of the coil 21 will be specifically described with reference to FIGS. In FIG. 8, the storage positions of the conductor wires stored in the slots 13 are defined as the first layer, the second layer, the third layer, and the fourth layer from the inner diameter side for convenience. 8, 1, 2,..., 12, 13 are slot numbers assigned to the slots 13 in the order of arrangement in the circumferential direction. In FIG. 8, the first to third coil end portions 21e, 21f, and 21g are shown by straight lines for convenience.
　第１直線部２１ａが１番のスロット１３内の第１層に収納され、第２および第４直線部２１ｂ，２１ｄが７番のスロット１３内の第２層および第４層に収納され、第３直線部２１ｃが１３番のスロット１３内の第３層に収納される。すなわち、第１、第２、第３および第４直線部２１ａ，２１ｂ，２１ｃ，２１ｄは、６スロット角度間隔離れて３列に配列される。 The first straight portion 21a is stored in the first layer in the first slot 13, and the second and fourth straight portions 21b and 21d are stored in the second and fourth layers in the seventh slot 13. Three straight portions 21 c are stored in the third layer in the thirteenth slot 13. In other words, the first, second, third, and fourth straight portions 21a, 21b, 21c, and 21d are arranged in three rows with an interval of 6 slots.
　１番のスロット１３内の第１層から電機子鉄心１１の軸方向他端側に延び出た第１コイルエンド部２１ｅは、径方向位置を維持して、一定の傾きで周方向一側かつ軸方向外方に延び、中央部（頂部）で径方向内方にｄだけ変位され、その後逆向きの傾きで、径方向位置を維持して、周方向一側かつ軸方向内方に延び、７番のスロット１３内の第２層に入る。 The first coil end portion 21e extending from the first layer in the first slot 13 to the other axial end side of the armature core 11 maintains the radial position, and has a constant inclination on one side in the circumferential direction. Extending outward in the axial direction, displaced by d inward in the radial direction at the center (top), and then maintaining the radial position with a reverse inclination, extending in the circumferential direction and axially inward, Enter the second layer in the seventh slot 13.
　７番のスロット１３内の第２層から電機子鉄心１１の軸方向一端側に延び出た第２コイルエンド部２１ｆは、径方向位置を維持して、一定の傾きで周方向一側かつ軸方向外方に延び、中央部（頂部）で径方向内方にｄだけ変位され、その後逆向きの傾きで、径方向位置を維持して、周方向一側かつ軸方向内方に延び、１３番のスロット１３内の第３層に入る。 The second coil end portion 21f extending from the second layer in the seventh slot 13 to one end side in the axial direction of the armature core 11 maintains the radial position, and has a constant inclination on one side in the circumferential direction. It extends outward in the direction, is displaced inward in the radial direction by a central portion (top), and then is displaced in the radial direction by maintaining the radial position with a reverse inclination, and extends inward in the circumferential direction and 13 in the axial direction. The third layer in the numbered slot 13 is entered.
　１３番のスロット１３内の第３層から電機子鉄心１１の軸方向他端側に延び出た第３コイルエンド部２１ｇは、径方向位置を維持して、一定の傾きで周方向他側かつ軸方向外方に延び、中央部（頂部）で径方向内方にｄだけ変位され、その後逆向きの傾きで、径方向位置を維持して、周方向他側かつ軸方向内方に延び、７番のスロット１３内の第４層に入る。 The third coil end portion 21g extending from the third layer in the thirteenth slot 13 to the other axial end side of the armature core 11 maintains the radial position, and has a constant inclination on the other side in the circumferential direction. Extending outward in the axial direction, displaced by d inward in the radial direction at the center (top), and then maintaining the radial position with a reverse inclination, extending in the other circumferential direction and inward in the axial direction, The fourth layer in the seventh slot 13 is entered.
　このように、第１から第３コイルエンド部２１ｅ，２１ｆ，２１ｇは、導体線の幅ｄだけ径方向に変位するクランク部を頂部に有している。また、第１から第３コイルエンド部２１ｅ，２１ｆ，２１ｇおよび第１および第２コイル端末２１ｈ，２１ｊは、円形断面の導体線を径方向に潰して、径方向厚みをｄ'（ただし、ｄ'＜ｄ）、軸方向厚みをｄ"（ただし、ｄ"＞ｄ）とする断面形状に形成されている。 Thus, the first to third coil end portions 21e, 21f, and 21g have a crank portion that is displaced in the radial direction by the width d of the conductor wire at the top. Further, the first to third coil end portions 21e, 21f, 21g and the first and second coil terminals 21h, 21j are crushed in the radial direction by a conductor wire having a circular cross section, and the radial thickness is d ′ (however, d '<D), formed in a cross-sectional shape in which the axial thickness is d ″ (where d ″> d).
　１番のスロット１３内の第１層から電機子鉄心１１の軸方向一端側に延び出た第１コイル端末２１ｈは、第１曲げ部２１ｎで曲げられて、径方向位置を維持して、一定の傾きで周方向他側かつ軸方向外方に延び、その後、第２曲げ部２１ｍで電機子鉄心１１の軸方向と平行に曲げられて軸方向外方に延び出ている。
　７番のスロット１３内の第４層から電機子鉄心１１の軸方向一端側に延び出た第２コイル端末２１ｊは、第３曲げ部２１ｐで曲げられて、径方向位置を維持して、一定の傾きで周方向一側かつ軸方向外方に延び、その後第４曲げ部２１ｏで電機子鉄心１１の軸方向と平行に曲げられて軸方向外方に延び出ている。 The first coil terminal 21h extending from the first layer in the first slot 13 toward one end in the axial direction of the armature core 11 is bent by the first bending portion 21n to maintain the radial position and keep constant. The second bending portion 21m is bent in parallel with the axial direction of the armature core 11 and extends outward in the axial direction.
The second coil terminal 21j extending from the fourth layer in the seventh slot 13 to the one end side in the axial direction of the armature core 11 is bent at the third bending portion 21p to maintain the radial position and keep constant. The first bending portion 21o bends in parallel with the axial direction of the armature core 11 and extends outward in the axial direction.
　第１および第２コイル端末２１ｈ，２１ｊは、第２および第４曲げ部２１ｍ，２１ｏの先端側で他のコイル２１、給電部、中性点などに接続される。そこで、第１および第２コイル端末２１ｈ，２１ｊの第２および第４曲げ部２１ｍ，２１ｏの先端側は、絶縁皮膜が剥離されており、周方向幅がｅ（ただし、ｅ＜ｄ"）となっている。 The first and second coil terminals 21h and 21j are connected to the other coil 21, the power feeding unit, the neutral point, and the like on the tip side of the second and fourth bending portions 21m and 21o. Therefore, the insulating film is peeled off at the tip end sides of the second and fourth bent portions 21m, 21o of the first and second coil terminals 21h, 21j, and the circumferential width is e (where e <d ″). It has become.
　つぎに、電機子１０の製造方法について図９から図２９を用いて説明する。図９はこの発明の実施の形態１に係る回転電機における電機子巻線を示す斜視図、図１０はこの発明の実施の形態１に係る回転電機における電機子巻線のコイルエンド内に絶縁紙を装着した状態を示す斜視図、図１１はこの発明の実施の形態１に係る回転電機における電機子巻線のコイルエンド内に絶縁紙を装着した状態を模式的に示す断面図、図１２はこの発明の実施の形態１に係る回転電機における電機子巻線に鉄心ブロックを装着する方法を説明する図、図１３はこの発明の実施の形態１に係る回転電機における電機子巻線に鉄心ブロックを装着した状態を説明する図、図１４はこの発明の実施の形態１に係る回転電機における電機子巻線に鉄心ブロックを装着した状態を模式的に示す断面図、図１５はこの発明の実施の形態１に係る回転電機における外径側絶縁紙を示す正面図、図１６はこの発明の実施の形態１に係る回転電機における外径側絶縁紙を示す側面図、図１７はこの発明の実施の形態１に係る回転電機における外径側絶縁紙を示す斜視図、図１８は図１５のＡ部拡大図、図１９はこの発明の実施の形態１に係る回転電機における内径側絶縁紙を示す正面図、図２０はこの発明の実施の形態１に係る回転電機における内径側絶縁紙を示す側面図、図２１はこの発明の実施の形態１に係る回転電機における内径側絶縁紙を示す斜視図、図２２は図１９のＢ部拡大図、図２３はこの発明の実施の形態１に係る回転電機における電機子の電機子巻線に外径側および内径側絶縁紙を装着する方法を説明する斜視図、図２４はこの発明の実施の形態１に係る回転電機における外径側および内径側絶縁紙が装着された電機子を示す斜視図、図２５はこの発明の実施の形態１に係る回転電機における電機子を模式的に示す断面図、図２６はこの発明の実施の形態１に係る回転電機における外径側および内径側絶縁紙が装着された電機子を軸方向一端側から見た端面図、図２７はこの発明の実施の形態１に係る回転電機における、外径側および内径側絶縁紙が装着された電機子を示す側面図、図２８は図２６のＨ部拡大図、図２９は図２７のＪ部拡大図である。なお、図１２および図１３では、便宜上、電機子巻線２０を第１から第４直線部２１ａ，２１ｂ，２１ｃ，２１ｄのみで示している。 Next, a method for manufacturing the armature 10 will be described with reference to FIGS. 9 is a perspective view showing an armature winding in the rotary electric machine according to Embodiment 1 of the present invention, and FIG. 10 is an insulating paper in the coil end of the armature winding in the rotary electric machine according to Embodiment 1 of the present invention. FIG. 11 is a cross-sectional view schematically showing a state in which insulating paper is installed in the coil end of the armature winding in the rotary electric machine according to Embodiment 1 of the present invention, and FIG. FIG. 13 is a diagram for explaining a method of mounting an iron core block on an armature winding in a rotary electric machine according to Embodiment 1 of the present invention, and FIG. 13 shows an iron core block in the armature winding in the rotary electric machine according to Embodiment 1 of the present invention. FIG. 14 is a cross-sectional view schematically showing a state where an iron core block is attached to an armature winding in the rotary electric machine according to Embodiment 1 of the present invention, and FIG. According to Form 1 FIG. 16 is a side view showing the outer diameter side insulating paper in the rotating electric machine according to the first embodiment of the present invention, and FIG. 17 is the first embodiment of the present invention. FIG. 18 is an enlarged view of portion A of FIG. 15, FIG. 19 is a front view of the inner diameter side insulating paper in the rotating electric machine according to Embodiment 1 of the present invention, and FIG. FIG. 21 is a side view showing the inner diameter side insulating paper in the rotary electric machine according to Embodiment 1 of the present invention, FIG. 21 is a perspective view showing the inner diameter side insulating paper in the rotary electric machine according to Embodiment 1 of the present invention, and FIG. FIG. 23 is an enlarged view of a portion B of FIG. 19, and FIG. 23 is a perspective view for explaining a method of attaching outer diameter side and inner diameter side insulating paper to the armature winding of the armature in the rotary electric machine according to Embodiment 1 of the present invention. In the rotary electric machine according to Embodiment 1 of the present invention, FIG. 25 is a sectional view schematically showing the armature in the rotary electric machine according to Embodiment 1 of the present invention, and FIG. The end view which looked at the armature with which the outer diameter side in the rotary electric machine concerning Embodiment 1 and the inner diameter side insulating paper were attached was seen from the axial direction one end side, and Drawing 27 in the rotary electric machine concerning Embodiment 1 of this invention, FIG. 28 is an enlarged view of the H portion of FIG. 26, and FIG. 29 is an enlarged view of the J portion of FIG. 27. In FIG. 12 and FIG. 13, for convenience, the armature winding 20 is shown by only the first to fourth straight portions 21a, 21b, 21c, and 21d.
　まず、第１から第４曲げ部２１ｎ，２１ｍ，２１ｐ，２１ｏが形成されていない曲げ部未成形コイル（図示せず）を作製する。この曲げ部未成形コイルでは、第１コイル端末２１ｈは第１直線部２１ａの長さ方向に突出し、第２コイル端末２１ｊは第４直線部２１ｄの長さ方向に突出している。 First, a bent portion unformed coil (not shown) in which the first to fourth bent portions 21n, 21m, 21p, 21o are not formed is manufactured. In this bent portion unformed coil, the first coil terminal 21h protrudes in the length direction of the first straight portion 21a, and the second coil terminal 21j protrudes in the length direction of the fourth straight portion 21d.
　ついで、曲げ部未成形コイル１を周方向に１スロットピッチで６０個配列して、巻線アッセンブリ（図示せず）を作製する。このように作製された巻線アッセンブリの軸方向一端側には、第２コイルエンド部２１ｆが周方向に１スロットピッチで１列に配列される。第１コイル端末２１ｈが、第２コイルエンド部２１ｆの列の外径側に、周方向に１スロットピッチで１列に配列される。第２コイル端末２１ｊが、第２コイルエンド部２１ｆの列の内径側に、周方向に１スロットピッチで１列に配列される。 Next, 60 winding unassembled coils 1 are arranged at a 1-slot pitch in the circumferential direction to produce a winding assembly (not shown). On one end side in the axial direction of the winding assembly thus manufactured, the second coil end portions 21f are arranged in a row at a slot pitch in the circumferential direction. The first coil terminals 21h are arranged in one row at a one-slot pitch in the circumferential direction on the outer diameter side of the row of second coil end portions 21f. The second coil terminals 21j are arranged in one row at a slot pitch in the circumferential direction on the inner diameter side of the row of the second coil end portions 21f.
　また、この巻線アッセンブリの軸方向他端側には、第１コイルエンド部２１ｅが周方向に１スロットピッチで１列に配列される。第３コイルエンド部２１ｇが、第１コイルエンド部２１ｅの列に内径側に、周方向に１スロットピッチで１列に配列される。このように、巻線アッセンブリの軸方向他端側には、第１コイルエンド部２１ｅの列と第３コイルエンド部２１ｇの列とが、径方向に２層に並んでいる。 Further, on the other end side in the axial direction of the winding assembly, the first coil end portions 21e are arranged in a row at a slot pitch in the circumferential direction. The third coil end portions 21g are arranged on the inner diameter side in the row of the first coil end portions 21e and in a row at a slot pitch in the circumferential direction. Thus, the row of the first coil end portions 21e and the row of the third coil end portions 21g are arranged in two layers in the radial direction on the other axial end side of the winding assembly.
　ついで、曲げ捩り工具（図示せず）を用いて、周方向に配列されている第１コイル端末２１ｈを周方向他側に捻って、第１曲げ部２１ｎおよび第２曲げ部２１ｍを第１コイル端末２１ｈに形成する。同様に、曲げ捩り工具を用いて、周方向に配列されている第２コイル端末２１ｊを周方向一側に捻って、第３曲げ部２１ｐおよび第４曲げ部２１ｏを第２コイル端末２１ｊに形成する。これにより、図９に示される電機子巻線２０が作製される。なお、巻線アッセンブリは、第１から第４曲げ部２１ｎ，２１ｍ，２１ｐ，２１ｏが形成されていない点を除いて、電機子巻線２０と同様に構成されている。 Next, using a bending and twisting tool (not shown), the first coil terminals 21h arranged in the circumferential direction are twisted to the other circumferential side, and the first bending portion 21n and the second bending portion 21m are turned into the first coil. Formed on the terminal 21h. Similarly, the second coil terminal 21j arranged in the circumferential direction is twisted to one side in the circumferential direction by using a bending and twisting tool, and the third bending part 21p and the fourth bending part 21o are formed in the second coil terminal 21j. To do. Thereby, the armature winding 20 shown in FIG. 9 is produced. The winding assembly is configured in the same manner as the armature winding 20 except that the first to fourth bent portions 21n, 21m, 21p, and 21o are not formed.
　ついで、円環状に作製された第１絶縁紙１５１を電機子巻線２０の軸方向一端側から第１直線部２１ａと第２直線部２１ｂとの間を通して第１コイルエンド部２１ｅ内に挿入する。同様に、円環状に作製された第３絶縁紙１５３を電機子巻線２０の軸方向一端側から第３直線部２１ｃと第４直線部２１ｄとの間を通して第３コイルエンド部２１ｇ内に挿入する。さらに、円環状に作製された第２絶縁紙１５２を電機子巻線２０の軸方向他端側から第２直線部２１ｂと第３直線部２１ｃとの間を通して第２コイルエンド部２１ｆ内に挿入する。このようにして、図１０および図１１に示されるように、第１から第３絶縁紙１５１，１５２，１５３が電機子巻線２０に装着される。 Next, the first insulating paper 151 made in an annular shape is inserted into the first coil end portion 21e from the one end side in the axial direction of the armature winding 20 through the first straight portion 21a and the second straight portion 21b. . Similarly, the third insulating paper 153 formed in an annular shape is inserted into the third coil end portion 21g from the one end side in the axial direction of the armature winding 20 through the third straight portion 21c and the fourth straight portion 21d. To do. Further, the second insulating paper 152 made in an annular shape is inserted into the second coil end portion 21f from the other end side in the axial direction of the armature winding 20 through the second straight portion 21b and the third straight portion 21c. To do. In this manner, the first to third insulating papers 151, 152, and 153 are attached to the armature winding 20 as shown in FIGS.
　ここで、第１から第３絶縁紙１５１，１５２，１５３は、ポリイミド、ポリエチレンテレフタラート（ＰＥＴ）、ポリフェニレンサルファイド（ＰＰＳ）などのシート材から切り出された矩形状の帯状体をその短辺の真ん中で二つ折りに折り曲げ、さらに円環状に丸めて構成される。そして、電機子巻線２０に装着された第１から第３絶縁紙１５１，１５２，１５３の平均径は、ΦＸ１，ΦＸ２，ΦＸ３となっている。 Here, the first to third insulating papers 151, 152, and 153 are rectangular strips cut from a sheet material such as polyimide, polyethylene terephthalate (PET), polyphenylene sulfide (PPS), and the middle of the short sides thereof. It is constructed by folding it in half and then rounding it into an annular shape. The average diameters of the first to third insulating papers 151, 152, and 153 attached to the armature winding 20 are ΦX1, ΦX2, and ΦX3.
　ついで、スロットセル１４を電機子巻線２０の第１から第４直線部２１ａ，２１ｂ，２１ｃ，２１ｄの各列に装着する。ついで、３０個の鉄心ブロック１２が、図１２に示されるように、ティース１２ｂのそれぞれを、隣り合う第１から第４直線部２１ａ，２１ｂ，２１ｃ，２１ｄの列間の径方向外方に位置させるように、周方向に略等角ピッチで配列する。ついで、周方向に配列された鉄心ブロック１２を、径方向内方に移動させる。これにより、鉄心ブロック１２のティース１２ｂのそれぞれが隣り合う第１から第４直線部２１ａ，２１ｂ，２１ｃ，２１ｄの列間に挿入される。 Next, the slot cell 14 is mounted on each row of the first to fourth straight portions 21a, 21b, 21c, 21d of the armature winding 20. Next, as shown in FIG. 12, the 30 iron core blocks 12 position the teeth 12b radially outward between the adjacent first to fourth linear portions 21a, 21b, 21c, 21d. In order to achieve this, they are arranged at substantially equiangular pitch in the circumferential direction. Next, the iron core blocks 12 arranged in the circumferential direction are moved inward in the radial direction. Thereby, each of the teeth 12b of the iron core block 12 is inserted between adjacent rows of the first to fourth linear portions 21a, 21b, 21c, 21d.
　そして、周方向に配列された鉄心ブロック１２をさらに内径側に移動させると、隣り合う鉄心ブロック１２のコアバック部１２ａの周方向の側面同士が突き合わされ、鉄心ブロック１２の径方向内方への移動が阻止される。これにより、図１３および図１４に示されるように、電機子巻線２０が電機子鉄心１１に装着される。 Then, when the iron core blocks 12 arranged in the circumferential direction are further moved to the inner diameter side, the side surfaces in the circumferential direction of the core back portions 12a of the adjacent iron core blocks 12 are brought into contact with each other, and the iron core blocks 12 are radially inward. Movement is prevented. As a result, the armature winding 20 is attached to the armature core 11 as shown in FIGS. 13 and 14.
　ついで、図２３に示されるように、円環状に作製された外径側絶縁紙１５４を電機子巻線２０の軸方向一端側から第１コイル端末２１ｈの列と第２コイルエンド部２１ｆの列との間に挿入する。同様に、円環状に作製された内径側絶縁紙１５５を電機子巻線２０の軸方向一端側から第２コイル端末２１ｊの列と第２コイルエンド部２１ｆの列との間に挿入する。このようにして、図２４から図２７に示されるように、外径側および内径側絶縁紙１５４，１５５が電機子巻線２０に装着される。ついで、第１および第２コイル端末２１ｈ，２１ｊに結線処理が施され、第１および第２コイル端末２１ｈ，２１ｊが、第２および第４曲げ部２１ｍ，２１ｏの先端側で他のコイル２１、給電部、中性点などに接続される。 Next, as shown in FIG. 23, the outer diameter side insulating paper 154 formed in an annular shape is arranged from the one end side in the axial direction of the armature winding 20 to the first coil terminal 21h row and the second coil end portion 21f row. Insert between. Similarly, the inner diameter side insulating paper 155 formed in an annular shape is inserted between the row of the second coil terminal 21 j and the row of the second coil end portion 21 f from one end side in the axial direction of the armature winding 20. In this way, the outer diameter side and inner diameter side insulating papers 154 and 155 are attached to the armature winding 20 as shown in FIGS. Next, the first and second coil terminals 21h and 21j are connected to each other, and the first and second coil terminals 21h and 21j are connected to the other coils 21 on the tip side of the second and fourth bent portions 21m and 21o. Connected to power feeding unit, neutral point, etc.
　ここで、外径側絶縁紙１５４は、図１５から図１８に示されるように、一定の幅を有する円環状の基部１５４ａと、それぞれ、基部１５４ａの一方の端辺から径方向外方に突出して、互いに距離Ｄだけ離間して、周方向に配列する６０個の突起部１５４ｂと、隣り合う突起部１５４ｂ間に形成されるスリット１５４ｃと、を備える。同様に、内径側絶縁紙１５５は、図１９から図２２に示されるように、一定の幅を有する円環状の基部１５５ａと、それぞれ、基部１５５ａの一方の端辺から径方向内方に突出して、互いに距離Ｅだけ離間して、周方向に配列する６０個の突起部１５５ｂと、隣り合う突起部１５５ｂ間に形成されるスリット１５５ｃと、を備える。 Here, as shown in FIGS. 15 to 18, the outer-diameter-side insulating paper 154 protrudes radially outward from one end side of the base 154 a and an annular base 154 a having a certain width. 60 projections 154b that are spaced apart from each other by a distance D and are arranged in the circumferential direction, and slits 154c that are formed between adjacent projections 154b. Similarly, as shown in FIGS. 19 to 22, the inner diameter side insulating paper 155 protrudes radially inward from one end of the base portion 155a and an annular base portion 155a having a certain width. 60 projections 155b that are spaced apart from each other by a distance E and are arranged in the circumferential direction, and slits 155c that are formed between adjacent projections 155b.
　なお、外径側および内径側絶縁紙１５４，１５５は、ポリイミド、ポリエチレンテレフタラート（ＰＥＴ）、ポリフェニレンサルファイド（ＰＰＳ）などの絶縁シート材により作製される。そして、基部１５４ａ，１５５ａは、絶縁シート材から切り出された帯状の絶縁シートを円環状に丸めて作製され、突起部１５４ｂ，１５５ｂは、基部１５４ａ，１５５ａから突出する突出部をその根元部で折り曲げて作製される。また、スリット１５４ｃの幅Ｄ、およびスリット１５５ｃの幅Ｅは、外径側および内径側絶縁紙１５４，１５５の装着性を高める観点から、第１および第２コイル端末２１ｈ，２１ｊの先端部の幅ｅ以上とすることが望ましい。ここで、基部１５４ａが外径側絶縁紙用基部、突起部１５４ｂが外径側絶縁紙用突起部、基部１５５ａが内径側絶縁紙用基部、突起部１５５ｂが内径側絶縁紙用突起部である。 The outer diameter side and inner diameter side insulating papers 154 and 155 are made of an insulating sheet material such as polyimide, polyethylene terephthalate (PET), polyphenylene sulfide (PPS). The base portions 154a and 155a are produced by rounding a band-shaped insulating sheet cut out from the insulating sheet material into an annular shape. Produced. Further, the width D of the slit 154c and the width E of the slit 155c are the widths of the tip portions of the first and second coil terminals 21h and 21j from the viewpoint of improving the mounting properties of the outer diameter side and inner diameter side insulating papers 154 and 155. e or more is desirable. Here, the base 154a is the outer diameter side insulating paper base, the protrusion 154b is the outer diameter side insulating paper protrusion, the base 155a is the inner diameter side insulating paper base, and the protrusion 155b is the inner diameter side insulating paper protrusion. .
　そして、外径側絶縁紙１５４は、図２８および図２９に示されるように、突起部１５４ｂを隣り合う第１コイル端末２１ｈの先端部間の第２曲げ部２１ｍより軸方向外方に挿入されて、基部１５４ａが第１コイル端末２１ｈの列と第２コイルエンド部２１ｆの列との間に位置している。また、内径側絶縁紙１５５は、突起部１５５ｂを隣り合う第２コイル端末２１ｊの先端部間の第４曲げ部２１ｏより軸方向外方に挿入されて、基部１５５ａが第２コイル端末２１ｊの列と第２コイルエンド部２１ｆの列との間に位置している。 Then, as shown in FIG. 28 and FIG. 29, the outer diameter side insulating paper 154 is inserted axially outward from the second bent portion 21m between the tip portions of the adjacent first coil terminals 21h through the protruding portion 154b. The base portion 154a is located between the row of the first coil terminals 21h and the row of the second coil end portions 21f. Further, the inner diameter side insulating paper 155 is inserted axially outwardly from the fourth bent portion 21o between the tip portions of the adjacent second coil terminals 21j in the inner diameter side insulating paper 155, and the base portion 155a is arranged in the row of the second coil terminals 21j. And the second coil end portion 21f.
　この実施の形態１によれば、外径側絶縁紙１５４が、第１コイル端末２１ｈの列と第２コイルエンド部２１ｆの列との間に配設されている円環状の基部１５４ａと、それぞれ、基部１５４ａの軸方向外方の端部から径方向外方に突出して隣り合う第１コイル端末２１ｈの先端部間の第２曲げ部２１ｍより軸方向外方に挿入されている突起部１５４ｂと、を備えている。同様に、内径側絶縁紙１５５が、第２コイル端末２１ｊの列と第２コイルエンド部２１ｆの列との間に配設されている円環状の基部１５５ａと、それぞれ、基部１５５ａの軸方向外方の端部から径方向内方に突出して隣り合う第２コイル端末２１ｊの先端部間の第４曲げ部２１ｏより軸方向外方に挿入されている突起部１５５ｂと、を備えている。 According to the first embodiment, the outer diameter side insulating paper 154 includes an annular base 154a disposed between the row of the first coil terminals 21h and the row of the second coil end portions 21f, respectively. A protrusion 154b inserted axially outward from the second bent portion 21m between the distal end portions of the adjacent first coil terminals 21h projecting radially outward from the axially outward end of the base portion 154a; It is equipped with. Similarly, the inner diameter side insulating paper 155 includes an annular base portion 155a disposed between the row of the second coil terminals 21j and the row of the second coil end portions 21f, and an axially outer side of the base portion 155a. A protrusion 155b that protrudes radially inward from the other end and is inserted axially outward from the fourth bending portion 21o between the tips of the adjacent second coil terminals 21j.
　これにより、曲げ捩り工具を用いて、電機子鉄心１１に装着された曲げ部未成形コイルの第１および第２コイル端末２１ｈ，２１ｊに第１および第３曲げ部２１ｎ，２２ｐおよび第２および第４曲げ部２１ｍ，２１ｏを形成した後、外径側および内径側絶縁紙１５４，１５５を軸方向一端側から電機子巻線２０に装着することができる。 Accordingly, the first and third bent portions 21n and 22p and the second and second bent portions 21h and 21j of the bent portion unformed coil mounted on the armature core 11 are bent and bent using the bending and twisting tool. After forming the four bent portions 21m and 21o, the outer diameter side and inner diameter side insulating papers 154 and 155 can be attached to the armature winding 20 from one end side in the axial direction.
　したがって、第１および第２コイル端末２１ｈ，２１ｊの曲げ捩り工程による曲げ応力が外径側および内径側絶縁紙１５４，１５５に作用することがない。そこで、外径側および内径側絶縁紙１５４，１５５が捻られて、突起部１５４ｂ，１５５ｂと基部１５４ａ，１５５ａとの連結部が損傷し、あるいは基部１５４ａ，１５５ａが変形することがなく、電気絶縁性が向上され、回転電機１００を高電圧で使用される用途に適用できる。 Therefore, the bending stress due to the bending and twisting process of the first and second coil terminals 21h and 21j does not act on the outer diameter side and inner diameter side insulating papers 154 and 155. Therefore, the outer and inner diameter side insulating papers 154 and 155 are twisted, and the connecting portions between the projecting portions 154b and 155b and the base portions 154a and 155a are not damaged, or the base portions 154a and 155a are not deformed. Therefore, the rotary electric machine 100 can be applied to a use in which a high voltage is used.
　また、例えば、径方向の突起部１５４ｂ、１５５ｂが第２曲げ部２１ｍおよび第４曲げ部２１ｏより軸方向内側にあった場合は、外径側および内径側絶縁紙１５４，１５５を周方向に回しながら軸方向に挿入しなければ、突起部１５４ｂ、１５５ｂが第２曲げ部２１ｍおよび第４曲げ部２１ｏと干渉してしまう。本発明の構成によれば、径方向の突起部１５４ｂ、１５５ｂが第２曲げ部２１ｍおよび第４曲げ部２１ｏの軸方向外側にあるので、外径側および内径側絶縁紙１５４，１５５を軸方向に直線状に動作させるだけで、突起部１５４ｂ、１５５ｂを第２曲げ部２１ｍおよび第４曲げ部２１ｏと干渉することなく挿入することができ、安価に製造する効果がある。 Further, for example, when the radial protrusions 154b and 155b are axially inner than the second bent portion 21m and the fourth bent portion 21o, the outer diameter side and inner diameter side insulating papers 154 and 155 are rotated in the circumferential direction. However, if it is not inserted in the axial direction, the protrusions 154b and 155b interfere with the second bent portion 21m and the fourth bent portion 21o. According to the configuration of the present invention, since the radial protrusions 154b and 155b are on the outer side in the axial direction of the second bent portion 21m and the fourth bent portion 21o, the outer diameter side and inner diameter side insulating papers 154 and 155 are arranged in the axial direction. The projections 154b and 155b can be inserted without interfering with the second bent portion 21m and the fourth bent portion 21o, and the manufacturing cost can be reduced.
　また、電機子鉄心１１に装着された曲げ部未成形コイルの第１および第２コイル端末２１ｈ，２１ｊに第１および第３曲げ部２１ｎ，２２ｐおよび第２および第４曲げ部２１ｍ，２１ｏを形成する際に、第１および第２コイル端末２１ｈ，２１ｊの曲げ捩り装置に外径側および内径側絶縁紙１５４，１５５の保持・位置決め機構が不要となり、装置の低コスト化が図られる。 Further, the first and third bent portions 21n and 22p and the second and fourth bent portions 21m and 21o are formed on the first and second coil terminals 21h and 21j of the bent portion unformed coils attached to the armature core 11. In this case, the bending and twisting devices for the first and second coil terminals 21h and 21j do not require the holding / positioning mechanism for the outer and inner diameter insulating papers 154 and 155, and the cost of the device can be reduced.
　また、突起部１５４ｂが隣り合う第１コイル端末２１ｈの先端部間の第２曲げ部２１ｍより軸方向外方に挿入されている。そこで、突起部１５４ｂが第１コイル端末２１ｈの先端側に接して、外径側絶縁紙１５４の周方向の移動が規制される。また、突起部１５４ｂが第１コイル端末２１ｈの第２曲げ部２１ｍに接して、電機子鉄心１１側への移動、すなわち軸方向内方への移動が規制される。これにより、外径側絶縁紙１５４の周方向および軸方向の移動が規制される。同様に、突起部１５５ｂが隣り合う第２コイル端末２１ｊの先端部間の第４曲げ部２１ｏより軸方向外方に挿入されているので、内径側絶縁紙１５５の周方向および軸方向の移動が規制される。したがって、第１および第２コイル端末２１ｈ，２１ｊの結線処理において、外径側および内径側絶縁紙１５４，１５５の保持機構が不要となり、設備の低コスト化が図られるとともに、生産性が高められる。 Further, the protruding portion 154b is inserted axially outward from the second bent portion 21m between the tip portions of the adjacent first coil terminals 21h. Therefore, the protrusion 154b comes into contact with the distal end side of the first coil terminal 21h, and movement of the outer diameter side insulating paper 154 in the circumferential direction is restricted. Further, the protrusion 154b comes into contact with the second bending portion 21m of the first coil terminal 21h, and movement toward the armature core 11, that is, movement in the axial direction is restricted. Thereby, the movement of the outer diameter side insulating paper 154 in the circumferential direction and the axial direction is restricted. Similarly, since the protruding portion 155b is inserted axially outward from the fourth bent portion 21o between the tip portions of the adjacent second coil terminals 21j, the inner diameter side insulating paper 155 is moved in the circumferential direction and the axial direction. Be regulated. Therefore, in the connection processing of the first and second coil terminals 21h and 21j, the holding mechanism for the outer diameter side and inner diameter side insulating papers 154 and 155 is not required, the cost of the equipment is reduced, and the productivity is increased. .
　また、突起部１５４ｂ，１５５ｂが隣り合う第１および第２コイル端末２１ｈ，２１ｊの先端部間に挿入されているので、第１および第２コイル端末２１ｈ，２１ｊの先端部間の隙間を突起部１５４ｂ，１５５ｂの周方向幅に保持できる。したがって、図２９に示されるように、第１および第２コイル端末２１ｈ，２１ｊの第１および第３曲げ部２１ｎ，２１ｐと第２および第４曲げ部２１ｍ，２１ｏとの間に位置する傾斜部間の隙間Ｇが確保される。これにより、第１および第２コイル端末２１ｈ，２１ｊの周方向における絶縁距離が確保され、電気絶縁性が高められる。 Further, since the protrusions 154b and 155b are inserted between the front ends of the first and second coil terminals 21h and 21j adjacent to each other, the gap between the front ends of the first and second coil terminals 21h and 21j The circumferential width of 154b and 155b can be maintained. Therefore, as shown in FIG. 29, the inclined portion located between the first and third bent portions 21n, 21p of the first and second coil terminals 21h, 21j and the second and fourth bent portions 21m, 21o. A gap G between them is secured. Thereby, the insulation distance in the circumferential direction of the 1st and 2nd coil terminals 21h and 21j is ensured, and electrical insulation is improved.
　また、基部１５４ａが第１コイル端末２１ｈの列と第２コイルエンド部２１ｆの列との間に配設され、基部１５５ａが第２コイル端末２１ｊの列と第２コイルエンド部２１ｆの列との間に配設されているので、第１コイル端末２１ｈと第２コイルエンド部２１ｆとの間の径方向における絶縁距離が確保され、第２コイル端末２１ｊと第２コイルエンド部２１ｆとの間の径方向における絶縁距離が確保され、電気絶縁性が高められる。 Further, the base portion 154a is disposed between the row of the first coil terminals 21h and the row of the second coil end portions 21f, and the base portion 155a is formed between the row of the second coil terminals 21j and the row of the second coil end portions 21f. Since it is arrange | positioned between, the insulation distance in the radial direction between 21 h of 1st coil terminals and the 2nd coil end part 21f is ensured, and between the 2nd coil terminal 21j and the 2nd coil end part 21f, it is ensured. An insulation distance in the radial direction is ensured, and electrical insulation is improved.
　外径側および内径側絶縁紙１５４，１５５が絶縁シート材で作製されているので、製造が容易となり、低コスト化が図られるとともに、外径側および内径側絶縁紙１５４，１５５の厚みを薄くでき、コイルエンドの小型化が図られる。 Since the outer diameter side and inner diameter side insulating papers 154 and 155 are made of an insulating sheet material, manufacturing becomes easy and cost reduction is achieved, and the outer diameter side and inner diameter side insulating papers 154 and 155 are made thinner. Thus, the coil end can be reduced in size.
　また、第１から第３絶縁紙１５１，１５２，１５３が第１から第３コイルエンド部２１ｅ，２１ｆ，２１ｇ内に挿入されているので、第１から第３コイルエンド部２１ｅ，２１ｆ，２１ｇにより構成されるコイルエンドにおける電気絶縁性が高められる。 In addition, since the first to third insulating papers 151, 152, 153 are inserted into the first to third coil end portions 21e, 21f, 21g, the first to third coil end portions 21e, 21f, 21g The electrical insulation at the coil end to be constructed is improved.
　なお、上記実施の形態１では、外径側および内径側絶縁紙がそれぞれ径方向に１層に配置されているが、外径側および内径側絶縁紙に加えて、１枚、あるいは複数枚の円環状の基部を併設してもよい。これにより、基部が径方向に２層、あるいは３層以上配置されることになり、電気絶縁性が高められる。さらに、一つの基部が破れても、他の基部の同じ箇所が破れる可能性は極めて低く、電気絶縁性が確保でき、電気絶縁性に対する信頼性が高められる。さらにまた、併設された複数枚の基部の軸方向内方の端部を橋部により連結すれば、部品点数が削減され、生産性が向上される。 In the first embodiment, the outer diameter side and inner diameter side insulating papers are arranged in one layer in the radial direction, but in addition to the outer diameter side and inner diameter side insulating paper, one sheet or a plurality of sheets are provided. An annular base may be provided. As a result, the base portion is arranged in two layers or three or more layers in the radial direction, and electrical insulation is improved. Furthermore, even if one base portion is broken, the possibility that the same portion of the other base portion is broken is very low, electrical insulation can be ensured, and reliability with respect to electrical insulation is enhanced. Furthermore, if the axially inward ends of a plurality of bases provided side by side are connected by a bridge, the number of parts is reduced and productivity is improved.
　また、上記実施の形態１では、曲げ部未成形コイルを周方向に配列して巻線アッセンブリを作製した後、曲げ部未成形コイルの第１および第２コイル端末の曲げ捩り工程を実施しているが、曲げ部未成形コイルを電機子鉄心に装着した後、曲げ部未成形コイルの第１および第２コイル端末の曲げ捩り工程を実施してもよく、第１および第２コイル端末の曲げ捩り工程をコイルの成形工程内で実施してもよい。 In the first embodiment, after forming the winding assembly by arranging the bending portion unformed coils in the circumferential direction, the bending and twisting steps of the first and second coil terminals of the bending portion unformed coils are performed. However, after the bending portion unformed coil is mounted on the armature core, the bending and twisting process of the first and second coil ends of the bending portion unformed coil may be performed, and the bending of the first and second coil ends may be performed. The twisting process may be performed within the coil forming process.
　実施の形態２．
　図３０はこの発明の実施の形態２に係る回転電機における電機子を模式的に示す断面図である。 Embodiment 2. FIG.
FIG. 30 is a cross-sectional view schematically showing an armature in a rotary electric machine according to Embodiment 2 of the present invention.
　図３０において、外径側絶縁紙１５４Ａは、円環状の基部１５４ａ'と突起部１５４ｂ'とが一体に成形された樹脂成形体である。内径側絶縁紙１５５Ａは、円環状の基部１５５ａ'と突起部１５５ｂ'とが一体に成形された樹脂成形体である。
　なお、他の構成は、上記実施の形態１と同様に構成されている。 In FIG. 30, the outer diameter side insulating paper 154A is a resin molded body in which an annular base 154a ′ and a protrusion 154b ′ are integrally formed. The inner diameter side insulating paper 155A is a resin molded body in which an annular base 155a ′ and a protrusion 155b ′ are integrally formed.
Other configurations are the same as those in the first embodiment.
　この実施の形態２では、外径側および内径側絶縁紙１５４Ａ，１５５Ａが樹脂成形体であるので、樹脂成形時の樹脂の流動性を確保するために、厚みが厚くなる。したがって、絶縁距離を確実に確保でき、電気絶縁性が高められるとともに、外径側および内径側絶縁紙１５４Ａ，１５５Ａが破れるリスクが低減され、電気絶縁性に対する信頼性を高めることができる。 In the second embodiment, since the outer diameter side and inner diameter side insulating papers 154A and 155A are resin molded bodies, the thickness is increased in order to ensure the fluidity of the resin during resin molding. Therefore, the insulation distance can be reliably ensured, the electrical insulation can be improved, the risk of the outer diameter side and inner diameter side insulating papers 154A and 155A being broken can be reduced, and the reliability with respect to the electrical insulation can be increased.
　ここで、外径側および内径側絶縁紙を樹脂成形体で作製する場合には、複雑な金型が必要となるとともに、樹脂成形時の樹脂の流動性を確保するために、必要な厚み以上の厚みとなる。そこで、低コスト化および小型化の観点からは、外径側および内径側絶縁紙を絶縁シートで作製することが望ましい。 Here, when the outer diameter side and inner diameter side insulating paper is made of a resin molded body, a complicated mold is required, and in order to ensure the fluidity of the resin at the time of resin molding, the thickness is more than necessary. It becomes the thickness of. Therefore, from the viewpoint of cost reduction and miniaturization, it is desirable to produce the outer diameter side and inner diameter side insulating paper with insulating sheets.
　実施の形態３．
　図３１はこの発明の実施の形態３に係る回転電機における電機子を模式的に示す断面図である。 Embodiment 3 FIG.
FIG. 31 is a cross-sectional view schematically showing an armature in a rotary electric machine according to Embodiment 3 of the present invention.
　図３１において、外径側絶縁紙１５４Ｂの円環状の基部１５４ａ"が軸方向の中央部で軸方向に２つ折りに折られて、径方向に２層となっている。また、内径側絶縁紙１５５Ｂの円環状の基部１５５ａ"が幅方向の中央部で軸方向に２つ折りに折られて、径方向に２層となっている。
　なお、他の構成は、上記実施の形態１と同様に構成されている。 In FIG. 31, an annular base portion 154a "of the outer diameter side insulating paper 154B is folded in two in the axial direction at the central portion in the axial direction to form two layers in the radial direction. An annular base portion 155a "of 155B is folded in two in the axial direction at the central portion in the width direction to form two layers in the radial direction.
Other configurations are the same as those in the first embodiment.
　この実施の形態３では、基部１５４ａ"，１５５ａ"が軸方向の中央部で２つ折りに折られて径方向に２層となっているので、外径側および内径側絶縁紙１５４Ｂ，１５５Ｂの剛性が高められる。そこで、外径側および内径側絶縁紙１５４Ｂ，１５５Ｂの電機子巻線２０への装着が容易となり、かつ電機子巻線２０への装着時の外径側および内径側絶縁紙１５４Ｂ，１５５Ｂの座屈やしわの発生が抑えられ、生産性が高められる。 In the third embodiment, since the base portions 154a "and 155a" are folded in half at the axial central portion to form two layers in the radial direction, the rigidity of the outer diameter side and inner diameter side insulating papers 154B and 155B Is increased. Therefore, the outer diameter side and inner diameter side insulating papers 154B and 155B can be easily mounted on the armature winding 20, and the outer diameter side and inner diameter side insulating paper 154B and 155B seats when the armature winding 20 is mounted. Occurrence of bending and wrinkles is suppressed, and productivity is increased.
　また、第１コイル端末２１ｈと第２コイルエンド部２１ｆとの間の径方向における絶縁距離が確保され、第２コイル端末２１ｊと第２コイルエンド部２１ｆとの間の径方向における絶縁距離が確保され、電気絶縁性が高められる。
　さらに、仮に、基部１５４ａ"，１５５ａ"の２つ折りされた一方が破れても、他方により電気絶縁性が確保されるので、電気絶縁性に対する信頼性を高めることができる。 Further, an insulation distance in the radial direction between the first coil terminal 21h and the second coil end portion 21f is ensured, and an insulation distance in the radial direction between the second coil end 21j and the second coil end portion 21f is secured. And electrical insulation is enhanced.
Furthermore, even if one of the base portions 154a ″ and 155a ″ is broken, the electrical insulation is ensured by the other, so that the reliability with respect to the electrical insulation can be improved.
　実施の形態４．
　図３２はこの発明の実施の形態４に係る回転電機における電機子を模式的に示す断面図である。 Embodiment 4 FIG.
FIG. 32 is a cross-sectional view schematically showing an armature in a rotary electric machine according to Embodiment 4 of the present invention.
　図３２において、第１から第３コイルエンド部２１ｅ'，２１ｆ'，２１ｇ'および第１および第２コイル端末２１ｈ'，２１ｊ'は、第１から第４直線部２１ａ，２１ｂ，２１ｃ，２１ｄに対して、径方向の一面のみを窪ませるように変形されている。
　なお、他の構成は，上記実施の形態３と同様に構成されている。 In FIG. 32, the first to third coil end portions 21e ′, 21f ′, 21g ′ and the first and second coil terminals 21h ′, 21j ′ are changed from the first to fourth linear portions 21a, 21b, 21c, 21d. On the other hand, only one surface in the radial direction is deformed.
Other configurations are the same as those in the third embodiment.
　この実施の形態４では、コイル２１Ａの第１から第３コイルエンド部２１ｅ'，２１ｆ'，２１ｇ'および第１および第２コイル端末２１ｈ'，２１ｊ'は、第１から第４直線部２１ａ，２１ｂ，２１ｃ，２１ｄに対して、径方向の一面のみを窪ませるように変形されている。これにより、第１から第３絶縁紙１５１，１５２，１５３が挿入される第１から第３コイルエンド部２１ｅ'，２１ｆ'，２１ｇ'内の径方向の隙間が広くなるので、コイルエンドの径方向寸法を拡大することなく、相間絶縁性を高めることができる。 In the fourth embodiment, the first to third coil end portions 21e ′, 21f ′, 21g ′ and the first and second coil terminals 21h ′, 21j ′ of the coil 21A are connected to the first to fourth linear portions 21a, With respect to 21b, 21c, and 21d, only one surface in the radial direction is deformed. As a result, the radial gaps in the first to third coil end portions 21e ′, 21f ′, 21g ′ into which the first to third insulating papers 151, 152, 153 are inserted are widened. Interphase insulation can be improved without enlarging the directional dimension.
　実施の形態５．
　図３３はこの発明の実施の形態５に係る回転電機における電機子巻線を構成するコイルを示す斜視図、図３４はこの発明の実施の形態５に係る回転電機における電機子巻線を構成するコイルを第１および第２コイル端末側から見た端面図、図３５はこの発明の実施の形態５に係る回転電機における電機子巻線を構成するコイルを示す正面図、図３６はこの発明の実施の形態５に係る回転電機における絶縁紙を示す正面図、図３７はこの発明の実施の形態５に係る回転電機における絶縁紙を示す側面図、図３８はこの発明の実施の形態５に係る回転電機における絶縁紙を示す斜視図、図３９はこの発明の実施の形態５に係る回転電機における絶縁紙を示す要部正面図、図４０は図３７のＸＸＸＸ－ＸＸＸＸ矢視断面図、図４１はこの発明の実施の形態５に係る回転電機における電機子を軸方向一端側から見た端面図、図４２はこの発明の実施の形態５に係る回転電機における電機子を示す側面図、図４３はこの発明の実施の形態５に係る回転電機における電機子を示す斜視図、図４４はこの発明の実施の形態５に係る回転電機における電機子を模式的に示す断面図である。 Embodiment 5 FIG.
FIG. 33 is a perspective view showing coils constituting the armature winding in the rotary electric machine according to Embodiment 5 of the present invention, and FIG. 34 constitutes the armature winding in the rotary electric machine according to Embodiment 5 of the present invention. FIG. 35 is an end view of the coil viewed from the first and second coil terminal sides, FIG. 35 is a front view showing the coil constituting the armature winding in the rotary electric machine according to Embodiment 5 of the present invention, and FIG. 37 is a front view showing insulating paper in a rotating electrical machine according to Embodiment 5, FIG. 37 is a side view showing insulating paper in the rotating electrical machine according to Embodiment 5 of the present invention, and FIG. 38 is related to Embodiment 5 of the present invention. 39 is a perspective view showing the insulating paper in the rotating electrical machine, FIG. 39 is a front view of the principal part showing the insulating paper in the rotating electrical machine according to Embodiment 5 of the present invention, FIG. 40 is a cross-sectional view taken along arrow XXX-XXXX in FIG. Is the implementation of this invention 42 is an end view of the armature in the rotary electric machine according to the fifth embodiment when viewed from one end side in the axial direction, FIG. 42 is a side view showing the armature in the rotary electric machine according to the fifth embodiment of the present invention, and FIG. FIG. 44 is a cross-sectional view schematically showing an armature in a rotary electric machine according to Embodiment 5 of the present invention.
　実施の形態５では、コイル２２１は、例えば、エナメル樹脂で絶縁被覆された、かつ接続部のない連続した銅線やアルミニウム線などからなる直径ｄの円形断面の導体線を、Ｕ形状に成形して作製される。なお、コイル２２１は、長方形断面の導体線を用いて作製してもよい。 In the fifth embodiment, the coil 221 is formed, for example, by forming a conductor wire having a circular cross section having a diameter d made of a continuous copper wire or an aluminum wire, which is insulation-coated with enamel resin and has no connection portion, into a U shape. Produced. Note that the coil 221 may be manufactured using a conductor wire having a rectangular cross section.
　コイル２２１は、図３３から図３５に示されるように、６スロット角度間隔離れた第１および第２直線部２２１ａ，２２１ｂと、第１および第２直線部２２１ａ，２２１ｂの他端同士を連結する第１コイルエンド部２２１ｅと、第１直線部２２１ａの一端から突出する第１コイル端末２２１ｈと、第２直線部２２１ｂの一端から突出する第２コイル端末２２１ｊと、を備える。 As shown in FIGS. 33 to 35, the coil 221 connects the first and second straight portions 221 a and 221 b that are separated by an angle of 6 slots and the other ends of the first and second straight portions 221 a and 221 b. A first coil end portion 221e, a first coil terminal 221h protruding from one end of the first straight line portion 221a, and a second coil terminal 221j protruding from one end of the second straight line portion 221b are provided.
　このコイル２２１は、第１直線部２２１ａが一のスロット内の第１層に収納され、第２直線部２２１ｂが一のスロットから周方向一側に６スロット角度間隔はなれたスロット内の第２層に収納されるように作製されている。つまり、第１コイルエンド部２２１ｅが、第１直線部２２１ａの他端から、径方向位置を維持して、一定の傾きで周方向一側かつ軸方向外方に延び、中央部（頂部）で径方向内方に導体線の径方向幅ｄだけ変位され、その後逆向きの傾きで、径方向位置を維持して、周方向一側かつ軸方向内方に延び、第２直線部２２１ｂの他端に至るように作製されている。 In the coil 221, the first straight portion 221a is housed in the first layer in one slot, and the second straight portion 221b is in the second layer in the slot having a six-slot angular interval from one slot in the circumferential direction. It is made to be stored in That is, the first coil end portion 221e maintains a radial position from the other end of the first linear portion 221a, extends at a certain inclination in the circumferential direction and axially outward, and at the central portion (top portion). It is displaced radially inward by the radial width d of the conductor wire, and thereafter, with a reverse inclination, maintains the radial position and extends inward in the circumferential direction and inward in the axial direction. It is made to reach the end.
　また、第１直線部２２１ａの一端から延び出た第１コイル端末２２１ｈは、第１曲げ部２２１ｎで曲げられて、径方向位置を維持して、一定の傾きで周方向他側かつ軸方向外方に延び、その後、第２曲げ部２２１ｍで軸方向と平行に曲げられて軸方向外方に延び出るように作製されている。第２直線部２２１ｂの一端から延び出た第２コイル端末２２１ｊは、第３曲げ部２２１ｐで曲げられて、径方向位置を維持して、一定の傾きで周方向一側かつ軸方向外方に延び、その後第４曲げ部２２１ｏで軸方向と平行に曲げられて軸方向外方に延び出るように作製されている。 Further, the first coil terminal 221h extending from one end of the first straight portion 221a is bent at the first bending portion 221n, maintains the radial position, and has a constant inclination on the other side in the circumferential direction and outside in the axial direction. Then, the second bent portion 221m is bent in parallel with the axial direction and extends outward in the axial direction. The second coil terminal 221j extending from one end of the second straight part 221b is bent by the third bending part 221p, maintains the radial position, and moves circumferentially to one side and axially outward with a certain inclination. After that, the fourth bent portion 221o is bent in parallel with the axial direction and extends outward in the axial direction.
　なお、第１および第２コイル端末２２１ｈ，２２１ｊは、第２および第４曲げ部２２１ｍ，２２１ｏの先端側で他のコイル２２１、給電部、中性点などに接続される。また、第１コイルエンド部２２１ｅおよび第１および第２コイル端末２２１ｈ，２２１ｊは、円形断面の導体線を径方向に潰して、径方向厚みをｄ'（ただし、ｄ'＜ｄ）、軸方向厚みをｄ"（ただし、ｄ"＞ｄ）とする断面形状に形成されている。第１および第２コイル端末２２１ｈ，２２１ｊの第２および第４曲げ部２２１ｍ，２２１ｏの先端側は、絶縁皮膜が剥離されており、周方向幅がｅ（ただし、ｅ＜ｄ"）となっている。 Note that the first and second coil terminals 221h and 221j are connected to other coils 221, a power feeding unit, a neutral point, and the like on the tip side of the second and fourth bending portions 221m and 221o. The first coil end portion 221e and the first and second coil terminals 221h and 221j are formed by crushing a conductor wire having a circular cross section in the radial direction to have a radial thickness d ′ (where d ′ <d), and an axial direction. It is formed in a cross-sectional shape having a thickness d ″ (where d ″> d). The insulating film is peeled off from the tip side of the second and fourth bent portions 221m, 221o of the first and second coil terminals 221h, 221j, and the circumferential width is e (where e <d ″). Yes.
　このように構成されたコイル２２１は、図４１から図４４に示されるように、それぞれ、第１および第２直線部２２１ａ，２２１ｂが６スロット角度間隔はなれた一方のスロット内の第１層と他方のスロット内の第２層に収納されて、周方向に１スロットピッチで配列されて、電機子鉄心１１に装着され、電機子巻線２０Ａを構成する。また、第１絶縁紙１５１が、電機子鉄心１１の軸方向一端側から、第１直線部２２１ａの列と第２直線部２２１ｂの列との間を通って、周方向に１列に配列された第１コイルエンド部２２１ｅ内に装着される。さらに、外径側絶縁紙３５１と内径側絶縁紙３５２が、電機子鉄心１１の軸方向一端側から第１コイル端末２２１ｈの列と第２コイル端末２２１ｊの列との間に装着される。 As shown in FIGS. 41 to 44, the coil 221 configured in this way includes a first layer and a second layer in one slot in which the first and second linear portions 221a and 221b are spaced apart by six slots, respectively. Are placed in the second layer in the slot, arranged in the circumferential direction at a one-slot pitch, and mounted on the armature core 11 to constitute the armature winding 20A. Further, the first insulating paper 151 is arranged in one row in the circumferential direction from the one end side in the axial direction of the armature core 11 through the row of the first straight portions 221a and the rows of the second straight portions 221b. The first coil end portion 221e is mounted. Further, the outer diameter side insulating paper 351 and the inner diameter side insulating paper 352 are mounted between the first coil terminal 221 h and the second coil terminal 221 j from one axial end side of the armature core 11.
　つぎに、外径側絶縁紙３５１と内径側絶縁紙３５２の構造について図３６から図４０を参照しつつ説明する。 Next, the structure of the outer diameter side insulating paper 351 and the inner diameter side insulating paper 352 will be described with reference to FIGS.
　外径側および内径側絶縁紙３５１，３５２は、ポリイミド、ポリエチレンテレフタラート（ＰＥＴ）、ポリフェニレンサルファイド（ＰＰＳ）などの絶縁シート材により円環状に作製される。そして、基部３５１ａ，３５２ａは、絶縁シート材から切り出された帯状の絶縁シートを円環状に丸めて作製され、突起部３５１ｂ，３５２ｂは、基部３５１ａ，３５２ａの軸方向外方の端部から突出する突出部をその根元部で径方向外方又は径方向内方に折り曲げて作製される。また、基部３５１ａ，３５２ａの軸方向内方の端部が橋部３５３で接続されている。 The outer diameter side and inner diameter side insulating papers 351 and 352 are formed in an annular shape from an insulating sheet material such as polyimide, polyethylene terephthalate (PET), polyphenylene sulfide (PPS). The base portions 351a and 352a are produced by rounding a band-shaped insulating sheet cut out from the insulating sheet material into an annular shape, and the protruding portions 351b and 352b protrude from the axially outer ends of the base portions 351a and 352a. The protruding portion is produced by bending the base portion radially outward or radially inward. Further, the ends of the base portions 351 a and 352 a on the inner side in the axial direction are connected by a bridge portion 353.
　ここで、基部３５１ａが外径側絶縁紙用基部、突起部３５１ｂが外径側絶縁紙用突起部、基部３５２ａが内径側絶縁紙用基部、突起部３５２ｂが内径側絶縁紙用突起部である。また、スリット３５１ｃの幅Ｊ、およびスリット３５２ｃの幅Ｋは、外径側および内径側絶縁紙３５１，３５２の装着性を高める観点から、第１および第２コイル端末２２１ｈ，２２１ｊの先端部の幅ｅ以上とすることが望ましい。 Here, the base 351a is the outer diameter side insulating paper base, the protrusion 351b is the outer diameter side insulating paper protrusion, the base 352a is the inner diameter side insulating paper base, and the protrusion 352b is the inner diameter side insulating paper protrusion. . Further, the width J of the slit 351c and the width K of the slit 352c are the widths of the front end portions of the first and second coil terminals 221h and 221j from the viewpoint of improving the mounting properties of the outer and inner diameter side insulating papers 351 and 352. e or more is desirable.
　このように構成された外径側絶縁紙３５１は、突起部３５１ｂを隣り合う第１コイル端末２２１ｈの先端部間の第２曲げ部２２１ｍより軸方向外方に挿入されて、基部３５１ａが第１コイル端末２２１ｈの列の内径側に第１コイル端末２２１ｈに沿って配設されている。また、内径側絶縁紙３５２は、突起部３５２ｂを隣り合う第２コイル端末２２１ｊの先端部間の第４曲げ部２２１ｏより軸方向外方に挿入されて、基部３５１ａが第２コイル端末２２１ｊの列の外径側に第２コイル端末２２１ｊの列に沿って配設される。 The outer-diameter-side insulating paper 351 configured in this way is inserted in the protruding portion 351b axially outward from the second bent portion 221m between the tip portions of the adjacent first coil terminals 221h, and the base portion 351a is the first. Arranged along the first coil terminal 221h on the inner diameter side of the row of coil terminals 221h. Further, the inner diameter side insulating paper 352 is inserted axially outwardly from the fourth bent portion 221o between the tip portions of the adjacent second coil terminals 221j in the inner diameter side insulating paper 352, and the base portion 351a is arranged in the row of the second coil terminals 221j. Are arranged along the row of the second coil terminals 221j.
　この実施の形態５では、外径側絶縁紙３５１が、第１コイル端末２２１ｈの列の内径側に第１コイル端末２２１ｈの列に沿って配設されている円環状の基部３５１ａと、それぞれ、基部３５１ａの軸方向外方の端部から径方向外方に突出して隣り合う第１コイル端末２２１ｈの先端部間の第２曲げ部２２１ｍより軸方向外方に挿入されている突起部３５１ｂと、を備えている。同様に、内径側絶縁紙３５１が、第２コイル端末２２１ｊの列の外径側に第２コイル端末２２１ｊの列に沿って配設されている円環状の基部３５２ａと、それぞれ、基部３５２ａの軸方向外方の端部から径方向内方に突出して隣り合う第２コイル端末２２１ｊの先端部間の第４曲げ部２２１ｏより軸方向外方に挿入されている突起部３５２ｂと、を備えている。
　したがって、実施の形態５においても、上記実施の形態１と同様の効果が得られる。 In the fifth embodiment, the outer diameter side insulating paper 351 has an annular base 351a disposed along the row of the first coil terminals 221h on the inner diameter side of the row of the first coil terminals 221h. A protrusion 351b inserted axially outward from the second bent portion 221m between the distal ends of the first coil terminals 221h that protrude radially outward from the axially outward end of the base 351a; It has. Similarly, the inner diameter side insulating paper 351 includes an annular base portion 352a disposed along the row of second coil terminals 221j on the outer diameter side of the row of second coil terminals 221j, and the shaft of the base portion 352a. A projection 352b that protrudes inward in the radial direction from the outer end in the direction and is inserted outward in the axial direction from the fourth bending portion 221o between the tip ends of the adjacent second coil terminals 221j. .
Therefore, in the fifth embodiment, the same effect as in the first embodiment can be obtained.
　この実施の形態５によれば、外径側絶縁紙３５１の基部３５１ａと内径側絶縁紙３５２の基部３５２ａとが橋部３５３で接続されている。そこで、外径側および内径側絶縁紙３５２，３５２が一部品となるので、部品点数が削減され、生産性が高められる。また、基部３５１ａ，３５２ａの剛性が大きくなるので、外径側および内径側絶縁紙３５２，３５２の電機子巻線２０Ａへの装着が容易となり、さらに電機子巻線２０Ａへの装着時の外径側および内径側絶縁紙３５２，３５２の座屈やしわの発生が抑制され、生産性が向上される。 According to the fifth embodiment, the base portion 351a of the outer diameter side insulating paper 351 and the base portion 352a of the inner diameter side insulating paper 352 are connected by the bridge portion 353. Therefore, since the outer diameter side and inner diameter side insulating papers 352 and 352 become one component, the number of components is reduced and productivity is increased. In addition, since the rigidity of the base portions 351a and 352a is increased, the outer diameter side and inner diameter side insulating paper 352 and 352 can be easily mounted on the armature winding 20A, and the outer diameter when the armature winding 20A is mounted. The occurrence of buckling and wrinkling of the side and inner diameter side insulating papers 352 and 352 is suppressed, and the productivity is improved.
　なお、上記実施の形態５では、外径側絶縁紙の基部と内径側絶縁紙の基部とを橋部で接続して外径側絶縁紙と内径側絶縁紙を一体化しているが、基部を軸方向の中央部で２つ折りにおって外径側絶縁紙と内径側絶縁紙を一体化してもよい。
　また、上記実施の形態５では、電機子鉄心が６０個の鉄心ブロックを円環状に連結して構成されているが、電機子鉄心を、例えば電磁鋼板から打ち抜かれた円環状のコア片を積層一体化した単一の鉄心で構成してもよい。 In Embodiment 5 described above, the outer diameter side insulating paper and the inner diameter side insulating paper are integrated by connecting the base portion of the outer diameter side insulating paper and the base portion of the inner diameter side insulating paper with a bridge portion. The outer diameter side insulating paper and the inner diameter side insulating paper may be integrated by folding in half at the center in the axial direction.
In the fifth embodiment, the armature core is formed by connecting 60 core blocks in an annular shape, and the armature core is laminated with, for example, an annular core piece punched out from an electromagnetic steel sheet. You may comprise with a single integrated iron core.
　実施の形態６．
　図４５はこの発明の実施の形態６に係る回転電機における絶縁紙を示す正面図、図４６はこの発明の実施の形態６に係る回転電機における絶縁紙を示す側面図、図４７はこの発明の実施の形態６に係る回転電機における絶縁紙を示す斜視図、図４８は図４６のＸＸＸＸＶＩＩＩ－ＸＸＸＸＶＩＩＩ矢視断面図、図４９はこの発明の実施の形態６に係る回転電機における電機子を模式的に示す断面図である。 Embodiment 6 FIG.
45 is a front view showing insulating paper in a rotary electric machine according to Embodiment 6 of the present invention, FIG. 46 is a side view showing insulating paper in the rotary electric machine according to Embodiment 6 of the present invention, and FIG. 48 is a perspective view showing insulating paper in the rotating electrical machine according to the sixth embodiment, FIG. 48 is a sectional view taken along the line XXXVIII-XXXVIII in FIG. 46, and FIG. 49 is a schematic diagram of the armature in the rotating electrical machine according to the sixth embodiment of the present invention. FIG.
　図４５から図４８において、貫通穴３５４が、外径側および内径側絶縁紙３５１Ａ，３５２Ａの基部３５１ａ'、３５２ａ'を径方向に貫通するように形成されている。
　なお、他の構成は上記実施の形態５と同様に構成されている。 45 to 48, through holes 354 are formed so as to penetrate the base portions 351a ′ and 352a ′ of the outer diameter side and inner diameter side insulating papers 351A and 352A in the radial direction.
Other configurations are the same as those in the fifth embodiment.
　したがって、実施の形態６においても、上記実施の形態５と同様の効果が得られる。 Therefore, in the sixth embodiment, the same effect as in the fifth embodiment can be obtained.
　この実施の形態６によれば、貫通穴３５４が、外径側および内径側絶縁紙３５１Ａ，３５２Ａの基部３５１ａ'、３５２ａ'を径方向に貫通するように形成されているので、図４９中矢印で示されるように、冷却風、冷却油などの冷却媒体が貫通穴３５４を通って径方向に流通し、電機子の冷却性が向上される。 According to the sixth embodiment, the through hole 354 is formed so as to penetrate the base portions 351a ′ and 352a ′ of the outer diameter side and inner diameter side insulating papers 351A and 352A in the radial direction. As shown by the above, a cooling medium such as cooling air or cooling oil flows in the radial direction through the through hole 354, and the cooling performance of the armature is improved.
　なお、上記実施の形態６では、２つの貫通穴が外径側および内径側絶縁紙の基部に形成されているが、貫通穴の個数は２つに限定されず、１つ以上であればよい。 In the sixth embodiment, two through holes are formed in the outer diameter side and inner diameter side insulating paper bases. However, the number of through holes is not limited to two, and may be one or more. .
　また、上記実施の形態１から４では、導体線をδ字状のコイルパターンに巻いてコイルを作製し、上記実施の形態５，６では、導体線をＵ字状のコイルパターンに巻いてコイルを作製しているが、コイルは、δ字状やＵ字状のコイルパターンのコイルに限定されず、スロットに挿入される２ｎ本の直線部（ただし、ｎは１以上の整数）および２ｎ本の上記直線部を一続きに連結する（２ｎ－１）本のコイルエンド部を有し、電機子鉄心に１スロットピッチで装着したときに、コイルの第１コイル端末がスロット内の最外径位置から軸方向一側に突出し、コイルの第２端末がスロット内の最内径位置から軸方向一側に突出するように構成されていればよく、たとえば、導体線を螺旋状のコイルパターンに巻いて作製された亀甲形のコイルでもよい。 In the first to fourth embodiments, the conductor wire is wound around a δ-shaped coil pattern to produce a coil. In the fifth and sixth embodiments, the conductor wire is wound around a U-shaped coil pattern. However, the coil is not limited to a coil having a δ-shaped or U-shaped coil pattern, and 2n straight portions (where n is an integer equal to or greater than 1) and 2n When the coil end portion is attached to the armature core at a one-slot pitch, the first coil end of the coil is the outermost diameter in the slot. It suffices if the second end of the coil protrudes from the position in the axial direction and protrudes from the innermost diameter position in the slot toward the axial direction. For example, a conductor wire is wound around a spiral coil pattern. Even a tortoiseshell shaped coil Yes.

Claims (8)

  1. 　スロットが周方向に配列された円環状の電機子鉄心、および上記電機子鉄心に装着された電機子巻線を備える電機子を有し、
    　上記電機子巻線は、上記スロットに挿入される２ｎ本の直線部（ただし、ｎは１以上の整数）および２ｎ本の上記直線部を一続きに連結する（２ｎ－１）本のコイルエンド部を有するコイルを上記電機子鉄心に１スロットピッチで周方向に装着して構成され、
    　上記コイルは、上記導体線の第１コイル端末が、上記スロット内の最外径位置から上記電機子鉄心の軸方向の一側に突出し、根元側の第１曲げ部で曲げられて周方向の一側に傾斜し、先端側の第２曲げ部で曲げられて軸方向の外方に延び、上記導体線の第２コイル端末が、上記スロット内の最内径位置から上記電機子鉄心の軸方向の一側に突出し、根元側の第３曲げ部で曲げられて周方向の一側又は他側に傾斜し、先端側の第４曲げ部で曲げられて軸方向外方に延びるように構成されている回転電機において、
    　上記第１コイル端末の列の内径側に装着された外径側絶縁紙と、
    　上記第２コイル端末の列の外径側に装着された内径側絶縁紙と、を備え、
    　上記外径側絶縁紙は、上記第１コイル端末の列の内径側に上記第１コイル端末に沿うように配置された円環状の外径側絶縁紙用基部と、それぞれ、上記外径側絶縁紙用基部の軸方向外方の端部から径方向外方に突出して、隣り合う上記第１コイル端末間の上記第２曲げ部より軸方向外方に挿入された外径側絶縁紙用突起部と、を有し、
    　上記内径側絶縁紙は、上記第２コイル端末の列の外径側に上記第２コイル端末に沿うように配置された円環状の内径側絶縁紙用基部と、それぞれ、上記内径側絶縁紙用基部の軸方向外方の端部から径方向内方に突出して、隣り合う上記第２コイル端末間の上記第４曲げ部より軸方向外方に挿入された外径側絶縁紙用突起部と、を有することを特徴とする回転電機。     An armature including an annular armature core in which slots are arranged in the circumferential direction, and an armature winding mounted on the armature core;
    The armature winding includes 2n linear portions (where n is an integer equal to or greater than 1) and 2n linear portions that are inserted into the slot and (2n-1) coil ends that are connected in series. A coil having a portion is mounted on the armature core in the circumferential direction at a pitch of 1 slot,
    In the coil, the first coil terminal of the conductor wire protrudes from the outermost diameter position in the slot to one side in the axial direction of the armature core, and is bent at the first bending portion on the root side to be circumferential. Inclined to one side, bent at the second bending portion on the front end side and extended outward in the axial direction, the second coil end of the conductor wire extends from the innermost diameter position in the slot to the axial direction of the armature core. Projecting to one side, bent at the third bent portion on the base side and inclined to one side or the other side in the circumferential direction, and bent at the fourth bent portion on the tip side to extend outward in the axial direction. In the rotating electrical machine
    An outer diameter side insulating paper mounted on the inner diameter side of the row of the first coil terminals;
    An inner diameter side insulating paper mounted on the outer diameter side of the row of the second coil terminals,
    The outer diameter side insulating paper includes an annular outer diameter side insulating paper base disposed along the first coil terminal on the inner diameter side of the row of the first coil terminals, and the outer diameter side insulating paper, respectively. A protrusion for outer-diameter-side insulating paper that protrudes radially outward from the axially outer end of the paper base and is inserted axially outward from the second bent portion between the adjacent first coil terminals. And
    The inner diameter side insulating paper includes an annular inner diameter side insulating paper base disposed along the second coil terminal on the outer diameter side of the row of the second coil terminals, and the inner diameter side insulating paper, respectively. An outer-diameter-side insulating paper projection that protrudes radially inward from the axially outer end of the base and is inserted axially outward from the fourth bent portion between the adjacent second coil terminals; A rotating electric machine comprising:
  2. 　上記外径側絶縁紙用基部および上記内径側絶縁紙用基部は、それぞれ、帯状の絶縁シートを円環状に曲げ成形して作製され、上記外径側絶縁紙用突起部および上記内径側絶縁紙用突起部は、それぞれ、上記帯状の絶縁シートの軸方向外方の端部から突出する突出部の根元部を折り曲げて作製されていることを特徴とする請求項１記載の回転電機。 The outer-diameter-side insulating paper base and the inner-diameter-side insulating paper base are each formed by bending a belt-like insulating sheet into an annular shape, and the outer-diameter-side insulating paper-projecting portion and the inner-diameter-side insulating paper 2. The rotating electrical machine according to claim 1, wherein each of the protrusions is formed by bending a base portion of a protruding portion protruding from an axially outer end portion of the band-shaped insulating sheet.
  3. 　上記外径側絶縁紙用基部および上記内径側絶縁紙用基部は、それぞれ、軸方向に折り返されて、径方向に２層に構成されていることを特徴とする請求項２記載の回転電機。 3. The rotating electrical machine according to claim 2, wherein the outer diameter side insulating paper base and the inner diameter side insulating paper base are each folded back in the axial direction and configured in two layers in the radial direction.
  4. 　貫通穴が、上記外径側絶縁紙用基部および上記内径側絶縁紙用基部を径方向に貫通するように形成されていることを特徴とする請求項１から請求項３記載の回転電機。 4. The rotating electrical machine according to claim 1, wherein a through hole is formed so as to penetrate the outer diameter side insulating paper base and the inner diameter side insulating paper base in the radial direction.
  5. 　帯状の絶縁シートを円環状に曲げ成形してされた基部が、上記第１コイル端末の列の内径側および上記第２コイル端末の列の外径側に、上記外径側絶縁紙用基部および上記内径側絶縁紙用基部のそれぞれと併設されていることを特徴とする請求項２記載の回転電機。 A base portion formed by bending a band-shaped insulating sheet into an annular shape is formed on the inner diameter side of the first coil terminal row and the outer diameter side of the second coil terminal row, and the outer diameter side insulating paper base portion and 3. The rotating electrical machine according to claim 2, wherein the rotating electric machine is provided with each of the inner diameter side insulating paper bases.
  6. 　併設された上記基部と上記外径側絶縁紙用基部の軸方向内方の端部同士が接続され、かつ併設された上記基部と上記内径側絶縁紙用基部の軸方向内方の端部同士が接続されていることを特徴とする請求項５記載の回転電機。 The axially inner ends of the base and the outer diameter-side insulating paper base that are provided side by side are connected to each other, and the axially inner ends of the base and the inner diameter-side insulating paper base that are provided side by side are connected. The rotating electrical machine according to claim 5, wherein
  7. 　貫通穴が、併設された上記基部と上記外径側絶縁紙用基部、および併設された上記基部と上記内径側絶縁紙用基部を径方向に貫通するように形成されていることを特徴とする請求項５又は請求項６記載の回転電機。 A through hole is formed so as to penetrate through the base and the outer diameter side insulating paper base provided side by side and the base and the inner diameter side insulating paper base provided side by side in the radial direction. The rotating electrical machine according to claim 5 or 6.
  8. 　請求項１から請求項７のいずれか１項に記載の回転電機の製造方法において、
    　上記外径側絶縁紙および上記内径側絶縁紙を上記電機子鉄心に装着された上記電機子巻線に装着する工程に先だって、上記第１曲げ部、第２曲げ部、第３曲げ部および第４曲げ部を上記第１コイル端末および上記第２コイル端末に形成する曲げ部形成工程を備えていることを特徴とする回転電機の製造方法。     In the manufacturing method of the rotary electric machine of any one of Claims 1-7,
    Prior to the step of attaching the outer diameter side insulating paper and the inner diameter side insulating paper to the armature winding attached to the armature core, the first bent portion, the second bent portion, the third bent portion, and the second A method of manufacturing a rotating electrical machine, comprising a bending part forming step of forming four bending parts in the first coil terminal and the second coil terminal.
PCT/JP2015/062826 2014-05-15 2015-04-28 Rotating electric machine and method for manufacturing same WO2015174277A1 (en)

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